Index: public/vendors/dataTable/KeyTable-2.5.1/js/dataTables.keyTable.js
===================================================================
--- public/vendors/dataTable/KeyTable-2.5.1/js/dataTables.keyTable.js	(revision 7304c7f4e9d471fa8974c193daec4fdd86dabe58)
+++ public/vendors/dataTable/KeyTable-2.5.1/js/dataTables.keyTable.js	(revision 7304c7f4e9d471fa8974c193daec4fdd86dabe58)
@@ -0,0 +1,1244 @@
+/*! KeyTable 2.5.1
+ * ©2009-2019 SpryMedia Ltd - datatables.net/license
+ */
+
+/**
+ * @summary     KeyTable
+ * @description Spreadsheet like keyboard navigation for DataTables
+ * @version     2.5.1
+ * @file        dataTables.keyTable.js
+ * @author      SpryMedia Ltd (www.sprymedia.co.uk)
+ * @contact     www.sprymedia.co.uk/contact
+ * @copyright   Copyright 2009-2019 SpryMedia Ltd.
+ *
+ * This source file is free software, available under the following license:
+ *   MIT license - http://datatables.net/license/mit
+ *
+ * This source file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details.
+ *
+ * For details please refer to: http://www.datatables.net
+ */
+
+(function( factory ){
+	if ( typeof define === 'function' && define.amd ) {
+		// AMD
+		define( ['jquery', 'datatables.net'], function ( $ ) {
+			return factory( $, window, document );
+		} );
+	}
+	else if ( typeof exports === 'object' ) {
+		// CommonJS
+		module.exports = function (root, $) {
+			if ( ! root ) {
+				root = window;
+			}
+
+			if ( ! $ || ! $.fn.dataTable ) {
+				$ = require('datatables.net')(root, $).$;
+			}
+
+			return factory( $, root, root.document );
+		};
+	}
+	else {
+		// Browser
+		factory( jQuery, window, document );
+	}
+}(function( $, window, document, undefined ) {
+'use strict';
+var DataTable = $.fn.dataTable;
+var namespaceCounter = 0;
+
+
+var KeyTable = function ( dt, opts ) {
+	// Sanity check that we are using DataTables 1.10 or newer
+	if ( ! DataTable.versionCheck || ! DataTable.versionCheck( '1.10.8' ) ) {
+		throw 'KeyTable requires DataTables 1.10.8 or newer';
+	}
+
+	// User and defaults configuration object
+	this.c = $.extend( true, {},
+		DataTable.defaults.keyTable,
+		KeyTable.defaults,
+		opts
+	);
+
+	// Internal settings
+	this.s = {
+		/** @type {DataTable.Api} DataTables' API instance */
+		dt: new DataTable.Api( dt ),
+
+		enable: true,
+
+		/** @type {bool} Flag for if a draw is triggered by focus */
+		focusDraw: false,
+
+		/** @type {bool} Flag to indicate when waiting for a draw to happen.
+		  *   Will ignore key presses at this point
+		  */
+		waitingForDraw: false,
+
+		/** @type {object} Information about the last cell that was focused */
+		lastFocus: null,
+
+		/** @type {string} Unique namespace per instance */
+		namespace: '.keyTable-'+(namespaceCounter++)
+	};
+
+	// DOM items
+	this.dom = {
+
+	};
+
+	// Check if row reorder has already been initialised on this table
+	var settings = this.s.dt.settings()[0];
+	var exisiting = settings.keytable;
+	if ( exisiting ) {
+		return exisiting;
+	}
+
+	settings.keytable = this;
+	this._constructor();
+};
+
+
+$.extend( KeyTable.prototype, {
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * API methods for DataTables API interface
+	 */
+
+	/**
+	 * Blur the table's cell focus
+	 */
+	blur: function ()
+	{
+		this._blur();
+	},
+
+	/**
+	 * Enable cell focus for the table
+	 *
+	 * @param  {string} state Can be `true`, `false` or `-string navigation-only`
+	 */
+	enable: function ( state )
+	{
+		this.s.enable = state;
+	},
+
+	/**
+	 * Focus on a cell
+	 * @param  {integer} row    Row index
+	 * @param  {integer} column Column index
+	 */
+	focus: function ( row, column )
+	{
+		this._focus( this.s.dt.cell( row, column ) );
+	},
+
+	/**
+	 * Is the cell focused
+	 * @param  {object} cell Cell index to check
+	 * @returns {boolean} true if focused, false otherwise
+	 */
+	focused: function ( cell )
+	{
+		var lastFocus = this.s.lastFocus;
+
+		if ( ! lastFocus ) {
+			return false;
+		}
+
+		var lastIdx = this.s.lastFocus.cell.index();
+		return cell.row === lastIdx.row && cell.column === lastIdx.column;
+	},
+
+
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Constructor
+	 */
+
+	/**
+	 * Initialise the KeyTable instance
+	 *
+	 * @private
+	 */
+	_constructor: function ()
+	{
+		this._tabInput();
+
+		var that = this;
+		var dt = this.s.dt;
+		var table = $( dt.table().node() );
+		var namespace = this.s.namespace;
+		var editorBlock = false;
+
+		// Need to be able to calculate the cell positions relative to the table
+		if ( table.css('position') === 'static' ) {
+			table.css( 'position', 'relative' );
+		}
+
+		// Click to focus
+		$( dt.table().body() ).on( 'click'+namespace, 'th, td', function (e) {
+			if ( that.s.enable === false ) {
+				return;
+			}
+
+			var cell = dt.cell( this );
+
+			if ( ! cell.any() ) {
+				return;
+			}
+
+			that._focus( cell, null, false, e );
+		} );
+
+		// Key events
+		$( document ).on( 'keydown'+namespace, function (e) {
+			if ( ! editorBlock ) {
+				that._key( e );
+			}
+		} );
+
+		// Click blur
+		if ( this.c.blurable ) {
+			$( document ).on( 'mousedown'+namespace, function ( e ) {
+				// Click on the search input will blur focus
+				if ( $(e.target).parents( '.dataTables_filter' ).length ) {
+					that._blur();
+				}
+
+				// If the click was inside the DataTables container, don't blur
+				if ( $(e.target).parents().filter( dt.table().container() ).length ) {
+					return;
+				}
+
+				// Don't blur in Editor form
+				if ( $(e.target).parents('div.DTE').length ) {
+					return;
+				}
+
+				// Or an Editor date input
+				if ( $(e.target).parents('div.editor-datetime').length ) {
+					return;
+				}
+
+				//If the click was inside the fixed columns container, don't blur
+				if ( $(e.target).parents().filter('.DTFC_Cloned').length ) {
+					return;
+				}
+
+				that._blur();
+			} );
+		}
+
+		if ( this.c.editor ) {
+			var editor = this.c.editor;
+
+			// Need to disable KeyTable when the main editor is shown
+			editor.on( 'open.keyTableMain', function (e, mode, action) {
+				if ( mode !== 'inline' && that.s.enable ) {
+					that.enable( false );
+
+					editor.one( 'close'+namespace, function () {
+						that.enable( true );
+					} );
+				}
+			} );
+
+			if ( this.c.editOnFocus ) {
+				dt.on( 'key-focus'+namespace+' key-refocus'+namespace, function ( e, dt, cell, orig ) {
+					that._editor( null, orig, true );
+				} );
+			}
+
+			// Activate Editor when a key is pressed (will be ignored, if
+			// already active).
+			dt.on( 'key'+namespace, function ( e, dt, key, cell, orig ) {
+				that._editor( key, orig, false );
+			} );
+
+			// Active editing on double click - it will already have focus from
+			// the click event handler above
+			$( dt.table().body() ).on( 'dblclick'+namespace, 'th, td', function (e) {
+				if ( that.s.enable === false ) {
+					return;
+				}
+
+				var cell = dt.cell( this );
+
+				if ( ! cell.any() ) {
+					return;
+				}
+
+				that._editor( null, e, true );
+			} );
+
+			// While Editor is busy processing, we don't want to process any key events
+			editor
+				.on('preSubmit', function () {
+					editorBlock = true;
+				} )
+				.on('preSubmitCancelled', function () {
+					editorBlock = false;
+				} )
+				.on('submitComplete', function () {
+					editorBlock = false;
+				} );
+		}
+
+		// Stave saving
+		if ( dt.settings()[0].oFeatures.bStateSave ) {
+			dt.on( 'stateSaveParams'+namespace, function (e, s, d) {
+				d.keyTable = that.s.lastFocus ?
+					that.s.lastFocus.cell.index() :
+					null;
+			} );
+		}
+
+		// Redraw - retain focus on the current cell
+		dt.on( 'draw'+namespace, function (e) {
+			if ( that.s.focusDraw ) {
+				return;
+			}
+
+			var lastFocus = that.s.lastFocus;
+
+			if ( lastFocus && lastFocus.node && $(lastFocus.node).closest('body') === document.body ) {
+				var relative = that.s.lastFocus.relative;
+				var info = dt.page.info();
+				var row = relative.row + info.start;
+
+				if ( info.recordsDisplay === 0 ) {
+					return;
+				}
+
+				// Reverse if needed
+				if ( row >= info.recordsDisplay ) {
+					row = info.recordsDisplay - 1;
+				}
+
+				that._focus( row, relative.column, true, e );
+			}
+		} );
+
+		// Clipboard support
+		if ( this.c.clipboard ) {
+			this._clipboard();
+		}
+
+		dt.on( 'destroy'+namespace, function () {
+			that._blur( true );
+
+			// Event tidy up
+			dt.off( namespace );
+
+			$( dt.table().body() )
+				.off( 'click'+namespace, 'th, td' )
+				.off( 'dblclick'+namespace, 'th, td' );
+
+			$( document )
+				.off( 'mousedown'+namespace )
+				.off( 'keydown'+namespace )
+				.off( 'copy'+namespace )
+				.off( 'paste'+namespace );
+		} );
+
+		// Initial focus comes from state or options
+		var state = dt.state.loaded();
+
+		if ( state && state.keyTable ) {
+			// Wait until init is done
+			dt.one( 'init', function () {
+				var cell = dt.cell( state.keyTable );
+
+				// Ensure that the saved cell still exists
+				if ( cell.any() ) {
+					cell.focus();
+				}
+			} );
+		}
+		else if ( this.c.focus ) {
+			dt.cell( this.c.focus ).focus();
+		}
+	},
+
+
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Private methods
+	 */
+
+	/**
+	 * Blur the control
+	 *
+	 * @param {boolean} [noEvents=false] Don't trigger updates / events (for destroying)
+	 * @private
+	 */
+	_blur: function (noEvents)
+	{
+		if ( ! this.s.enable || ! this.s.lastFocus ) {
+			return;
+		}
+
+		var cell = this.s.lastFocus.cell;
+
+		$( cell.node() ).removeClass( this.c.className );
+		this.s.lastFocus = null;
+
+		if ( ! noEvents ) {
+			this._updateFixedColumns(cell.index().column);
+
+			this._emitEvent( 'key-blur', [ this.s.dt, cell ] );
+		}
+	},
+
+
+	/**
+	 * Clipboard interaction handlers
+	 *
+	 * @private
+	 */
+	_clipboard: function () {
+		var dt = this.s.dt;
+		var that = this;
+		var namespace = this.s.namespace;
+
+		// IE8 doesn't support getting selected text
+		if ( ! window.getSelection ) {
+			return;
+		}
+
+		$(document).on( 'copy'+namespace, function (ejq) {
+			var e = ejq.originalEvent;
+			var selection = window.getSelection().toString();
+			var focused = that.s.lastFocus;
+
+			// Only copy cell text to clipboard if there is no other selection
+			// and there is a focused cell
+			if ( ! selection && focused ) {
+				e.clipboardData.setData(
+					'text/plain',
+					focused.cell.render( that.c.clipboardOrthogonal )
+				);
+				e.preventDefault();
+			}
+		} );
+
+		$(document).on( 'paste'+namespace, function (ejq) {
+			var e = ejq.originalEvent;
+			var focused = that.s.lastFocus;
+			var activeEl = document.activeElement;
+			var editor = that.c.editor;
+			var pastedText;
+
+			if ( focused && (! activeEl || activeEl.nodeName.toLowerCase() === 'body') ) {
+				e.preventDefault();
+
+				if ( window.clipboardData && window.clipboardData.getData ) {
+					// IE
+					pastedText = window.clipboardData.getData('Text');
+				}
+				else if ( e.clipboardData && e.clipboardData.getData ) {
+					// Everything else
+					pastedText = e.clipboardData.getData('text/plain');
+				}
+
+				if ( editor ) {
+					// Got Editor - need to activate inline editing,
+					// set the value and submit
+					editor
+						.inline( focused.cell.index() )
+						.set( editor.displayed()[0], pastedText )
+						.submit();
+				}
+				else {
+					// No editor, so just dump the data in
+					focused.cell.data( pastedText );
+					dt.draw(false);
+				}
+			}
+		} );
+	},
+
+
+	/**
+	 * Get an array of the column indexes that KeyTable can operate on. This
+	 * is a merge of the user supplied columns and the visible columns.
+	 *
+	 * @private
+	 */
+	_columns: function ()
+	{
+		var dt = this.s.dt;
+		var user = dt.columns( this.c.columns ).indexes();
+		var out = [];
+
+		dt.columns( ':visible' ).every( function (i) {
+			if ( user.indexOf( i ) !== -1 ) {
+				out.push( i );
+			}
+		} );
+
+		return out;
+	},
+
+
+	/**
+	 * Perform excel like navigation for Editor by triggering an edit on key
+	 * press
+	 *
+	 * @param  {integer} key Key code for the pressed key
+	 * @param  {object} orig Original event
+	 * @private
+	 */
+	_editor: function ( key, orig, hardEdit )
+	{
+		var that = this;
+		var dt = this.s.dt;
+		var editor = this.c.editor;
+		var editCell = this.s.lastFocus.cell;
+		var namespace = this.s.namespace;
+
+		// Do nothing if there is already an inline edit in this cell
+		if ( $('div.DTE', editCell.node()).length ) {
+			return;
+		}
+
+		// Don't activate Editor on control key presses
+		if ( key !== null && (
+			(key >= 0x00 && key <= 0x09) ||
+			key === 0x0b ||
+			key === 0x0c ||
+			(key >= 0x0e && key <= 0x1f) ||
+			(key >= 0x70 && key <= 0x7b) ||
+			(key >= 0x7f && key <= 0x9f)
+		) ) {
+			return;
+		}
+
+		orig.stopPropagation();
+
+		// Return key should do nothing - for textareas it would empty the
+		// contents
+		if ( key === 13 ) {
+			orig.preventDefault();
+		}
+
+		var editInline = function () {
+			editor
+				.one( 'open'+namespace, function () {
+					// Remove cancel open
+					editor.off( 'cancelOpen'+namespace );
+
+					// Excel style - select all text
+					if ( ! hardEdit ) {
+						$('div.DTE_Field_InputControl input, div.DTE_Field_InputControl textarea').select();
+					}
+
+					// Reduce the keys the Keys listens for
+					dt.keys.enable( hardEdit ? 'tab-only' : 'navigation-only' );
+
+					// On blur of the navigation submit
+					dt.on( 'key-blur.editor', function (e, dt, cell) {
+						if ( editor.displayed() && cell.node() === editCell.node() ) {
+							editor.submit();
+						}
+					} );
+
+					// Highlight the cell a different colour on full edit
+					if ( hardEdit ) {
+						$( dt.table().container() ).addClass('dtk-focus-alt');
+					}
+
+					// If the dev cancels the submit, we need to return focus
+					editor.on( 'preSubmitCancelled'+namespace, function () {
+						setTimeout( function () {
+							that._focus( editCell, null, false );
+						}, 50 );
+					} );
+
+					editor.on( 'submitUnsuccessful'+namespace, function () {
+						that._focus( editCell, null, false );
+					} );
+
+					// Restore full key navigation on close
+					editor.one( 'close', function () {
+						dt.keys.enable( true );
+						dt.off( 'key-blur.editor' );
+						editor.off( namespace );
+						$( dt.table().container() ).removeClass('dtk-focus-alt');
+					} );
+				} )
+				.one( 'cancelOpen'+namespace, function () {
+					// `preOpen` can cancel the display of the form, so it
+					// might be that the open event handler isn't needed
+					editor.off( namespace );
+				} )
+				.inline( editCell.index() );
+		};
+
+		// Editor 1.7 listens for `return` on keyup, so if return is the trigger
+		// key, we need to wait for `keyup` otherwise Editor would just submit
+		// the content triggered by this keypress.
+		if ( key === 13 ) {
+			hardEdit = true;
+
+			$(document).one( 'keyup', function () { // immediately removed
+				editInline();
+			} );
+		}
+		else {
+			editInline();
+		}
+	},
+
+
+	/**
+	 * Emit an event on the DataTable for listeners
+	 *
+	 * @param  {string} name Event name
+	 * @param  {array} args Event arguments
+	 * @private
+	 */
+	_emitEvent: function ( name, args )
+	{
+		this.s.dt.iterator( 'table', function ( ctx, i ) {
+			$(ctx.nTable).triggerHandler( name, args );
+		} );
+	},
+
+
+	/**
+	 * Focus on a particular cell, shifting the table's paging if required
+	 *
+	 * @param  {DataTables.Api|integer} row Can be given as an API instance that
+	 *   contains the cell to focus or as an integer. As the latter it is the
+	 *   visible row index (from the whole data set) - NOT the data index
+	 * @param  {integer} [column] Not required if a cell is given as the first
+	 *   parameter. Otherwise this is the column data index for the cell to
+	 *   focus on
+	 * @param {boolean} [shift=true] Should the viewport be moved to show cell
+	 * @private
+	 */
+	_focus: function ( row, column, shift, originalEvent )
+	{
+		var that = this;
+		var dt = this.s.dt;
+		var pageInfo = dt.page.info();
+		var lastFocus = this.s.lastFocus;
+
+		if ( ! originalEvent) {
+			originalEvent = null;
+		}
+
+		if ( ! this.s.enable ) {
+			return;
+		}
+
+		if ( typeof row !== 'number' ) {
+			// Its an API instance - check that there is actually a row
+			if ( ! row.any() ) {
+				return;
+			}
+
+			// Convert the cell to a row and column
+			var index = row.index();
+			column = index.column;
+			row = dt
+				.rows( { filter: 'applied', order: 'applied' } )
+				.indexes()
+				.indexOf( index.row );
+			
+			// Don't focus rows that were filtered out.
+			if ( row < 0 ) {
+				return;
+			}
+
+			// For server-side processing normalise the row by adding the start
+			// point, since `rows().indexes()` includes only rows that are
+			// available at the client-side
+			if ( pageInfo.serverSide ) {
+				row += pageInfo.start;
+			}
+		}
+
+		// Is the row on the current page? If not, we need to redraw to show the
+		// page
+		if ( pageInfo.length !== -1 && (row < pageInfo.start || row >= pageInfo.start+pageInfo.length) ) {
+			this.s.focusDraw = true;
+			this.s.waitingForDraw = true;
+
+			dt
+				.one( 'draw', function () {
+					that.s.focusDraw = false;
+					that.s.waitingForDraw = false;
+					that._focus( row, column, undefined, originalEvent );
+				} )
+				.page( Math.floor( row / pageInfo.length ) )
+				.draw( false );
+
+			return;
+		}
+
+		// In the available columns?
+		if ( $.inArray( column, this._columns() ) === -1 ) {
+			return;
+		}
+
+		// De-normalise the server-side processing row, so we select the row
+		// in its displayed position
+		if ( pageInfo.serverSide ) {
+			row -= pageInfo.start;
+		}
+
+		// Get the cell from the current position - ignoring any cells which might
+		// not have been rendered (therefore can't use `:eq()` selector).
+		var cells = dt.cells( null, column, {search: 'applied', order: 'applied'} ).flatten();
+		var cell = dt.cell( cells[ row ] );
+
+		if ( lastFocus ) {
+			// Don't trigger a refocus on the same cell
+			if ( lastFocus.node === cell.node() ) {
+				this._emitEvent( 'key-refocus', [ this.s.dt, cell, originalEvent || null ] );
+				return;
+			}
+
+			// Otherwise blur the old focus
+			this._blur();
+		}
+
+		// Clear focus from other tables
+		this._removeOtherFocus();
+
+		var node = $( cell.node() );
+		node.addClass( this.c.className );
+
+		this._updateFixedColumns(column);
+
+		// Shift viewpoint and page to make cell visible
+		if ( shift === undefined || shift === true ) {
+			this._scroll( $(window), $(document.body), node, 'offset' );
+
+			var bodyParent = dt.table().body().parentNode;
+			if ( bodyParent !== dt.table().header().parentNode ) {
+				var parent = $(bodyParent.parentNode);
+
+				this._scroll( parent, parent, node, 'position' );
+			}
+		}
+
+		// Event and finish
+		this.s.lastFocus = {
+			cell: cell,
+			node: cell.node(),
+			relative: {
+				row: dt.rows( { page: 'current' } ).indexes().indexOf( cell.index().row ),
+				column: cell.index().column
+			}
+		};
+
+		this._emitEvent( 'key-focus', [ this.s.dt, cell, originalEvent || null ] );
+		dt.state.save();
+	},
+
+
+	/**
+	 * Handle key press
+	 *
+	 * @param  {object} e Event
+	 * @private
+	 */
+	_key: function ( e )
+	{
+		// If we are waiting for a draw to happen from another key event, then
+		// do nothing for this new key press.
+		if ( this.s.waitingForDraw ) {
+			e.preventDefault();
+			return;
+		}
+
+		var enable = this.s.enable;
+		var navEnable = enable === true || enable === 'navigation-only';
+		if ( ! enable ) {
+			return;
+		}
+
+		if ( (e.keyCode === 0 || e.ctrlKey || e.metaKey || e.altKey) && !(e.ctrlKey && e.altKey) ) {
+			return;
+		}
+
+		// If not focused, then there is no key action to take
+		var lastFocus = this.s.lastFocus;
+		if ( ! lastFocus ) {
+			return;
+		}
+
+		// And the last focus still exists!
+		if ( ! this.s.dt.cell(lastFocus.node).any() ) {
+			this.s.lastFocus = null;
+			return;
+		}
+
+		var that = this;
+		var dt = this.s.dt;
+		var scrolling = this.s.dt.settings()[0].oScroll.sY ? true : false;
+
+		// If we are not listening for this key, do nothing
+		if ( this.c.keys && $.inArray( e.keyCode, this.c.keys ) === -1 ) {
+			return;
+		}
+
+		switch( e.keyCode ) {
+			case 9: // tab
+				// `enable` can be tab-only
+				this._shift( e, e.shiftKey ? 'left' : 'right', true );
+				break;
+
+			case 27: // esc
+				if ( this.s.blurable && enable === true ) {
+					this._blur();
+				}
+				break;
+
+			case 33: // page up (previous page)
+			case 34: // page down (next page)
+				if ( navEnable && !scrolling ) {
+					e.preventDefault();
+
+					dt
+						.page( e.keyCode === 33 ? 'previous' : 'next' )
+						.draw( false );
+				}
+				break;
+
+			case 35: // end (end of current page)
+			case 36: // home (start of current page)
+				if ( navEnable ) {
+					e.preventDefault();
+					var indexes = dt.cells( {page: 'current'} ).indexes();
+					var colIndexes = this._columns();
+
+					this._focus( dt.cell(
+						indexes[ e.keyCode === 35 ? indexes.length-1 : colIndexes[0] ]
+					), null, true, e );
+				}
+				break;
+
+			case 37: // left arrow
+				if ( navEnable ) {
+					this._shift( e, 'left' );
+				}
+				break;
+
+			case 38: // up arrow
+				if ( navEnable ) {
+					this._shift( e, 'up' );
+				}
+				break;
+
+			case 39: // right arrow
+				if ( navEnable ) {
+					this._shift( e, 'right' );
+				}
+				break;
+
+			case 40: // down arrow
+				if ( navEnable ) {
+					this._shift( e, 'down' );
+				}
+				break;
+
+			case 113: // F2 - Excel like hard edit
+				if ( this.c.editor ) {
+					this._editor(null, e, true);
+					break;
+				}
+				// else fallthrough
+
+			default:
+				// Everything else - pass through only when fully enabled
+				if ( enable === true ) {
+					this._emitEvent( 'key', [ dt, e.keyCode, this.s.lastFocus.cell, e ] );
+				}
+				break;
+		}
+	},
+
+	/**
+	 * Remove focus from all tables other than this one
+	 */
+	_removeOtherFocus: function ()
+	{
+		var thisTable = this.s.dt.table().node();
+
+		$.fn.dataTable.tables({api:true}).iterator('table', function (settings) {
+			if (this.table().node() !== thisTable) {
+				this.cell.blur();
+			}
+		});
+	},
+
+	/**
+	 * Scroll a container to make a cell visible in it. This can be used for
+	 * both DataTables scrolling and native window scrolling.
+	 *
+	 * @param  {jQuery} container Scrolling container
+	 * @param  {jQuery} scroller  Item being scrolled
+	 * @param  {jQuery} cell      Cell in the scroller
+	 * @param  {string} posOff    `position` or `offset` - which to use for the
+	 *   calculation. `offset` for the document, otherwise `position`
+	 * @private
+	 */
+	_scroll: function ( container, scroller, cell, posOff )
+	{
+		var offset = cell[posOff]();
+		var height = cell.outerHeight();
+		var width = cell.outerWidth();
+
+		var scrollTop = scroller.scrollTop();
+		var scrollLeft = scroller.scrollLeft();
+		var containerHeight = container.height();
+		var containerWidth = container.width();
+
+		// If Scroller is being used, the table can be `position: absolute` and that
+		// needs to be taken account of in the offset. If no Scroller, this will be 0
+		if ( posOff === 'position' ) {
+			offset.top += parseInt( cell.closest('table').css('top'), 10 );
+		}
+
+		// Top correction
+		if ( offset.top < scrollTop ) {
+			scroller.scrollTop( offset.top );
+		}
+
+		// Left correction
+		if ( offset.left < scrollLeft ) {
+			scroller.scrollLeft( offset.left );
+		}
+
+		// Bottom correction
+		if ( offset.top + height > scrollTop + containerHeight && height < containerHeight ) {
+			scroller.scrollTop( offset.top + height - containerHeight );
+		}
+
+		// Right correction
+		if ( offset.left + width > scrollLeft + containerWidth && width < containerWidth ) {
+			scroller.scrollLeft( offset.left + width - containerWidth );
+		}
+	},
+
+
+	/**
+	 * Calculate a single offset movement in the table - up, down, left and
+	 * right and then perform the focus if possible
+	 *
+	 * @param  {object}  e           Event object
+	 * @param  {string}  direction   Movement direction
+	 * @param  {boolean} keyBlurable `true` if the key press can result in the
+	 *   table being blurred. This is so arrow keys won't blur the table, but
+	 *   tab will.
+	 * @private
+	 */
+	_shift: function ( e, direction, keyBlurable )
+	{
+		var that         = this;
+		var dt           = this.s.dt;
+		var pageInfo     = dt.page.info();
+		var rows         = pageInfo.recordsDisplay;
+		var currentCell  = this.s.lastFocus.cell;
+		var columns      = this._columns();
+
+		if ( ! currentCell ) {
+			return;
+		}
+
+		var currRow = dt
+			.rows( { filter: 'applied', order: 'applied' } )
+			.indexes()
+			.indexOf( currentCell.index().row );
+
+		// When server-side processing, `rows().indexes()` only gives the rows
+		// that are available at the client-side, so we need to normalise the
+		// row's current position by the display start point
+		if ( pageInfo.serverSide ) {
+			currRow += pageInfo.start;
+		}
+
+		var currCol = dt
+			.columns( columns )
+			.indexes()
+			.indexOf( currentCell.index().column );
+
+		var
+			row = currRow,
+			column = columns[ currCol ]; // row is the display, column is an index
+
+		if ( direction === 'right' ) {
+			if ( currCol >= columns.length - 1 ) {
+				row++;
+				column = columns[0];
+			}
+			else {
+				column = columns[ currCol+1 ];
+			}
+		}
+		else if ( direction === 'left' ) {
+			if ( currCol === 0 ) {
+				row--;
+				column = columns[ columns.length - 1 ];
+			}
+			else {
+				column = columns[ currCol-1 ];
+			}
+		}
+		else if ( direction === 'up' ) {
+			row--;
+		}
+		else if ( direction === 'down' ) {
+			row++;
+		}
+
+		if ( row >= 0 && row < rows && $.inArray( column, columns ) !== -1 ) {
+			if (e) {
+				e.preventDefault();
+			}
+
+			this._focus( row, column, true, e );
+		}
+		else if ( ! keyBlurable || ! this.c.blurable ) {
+			// No new focus, but if the table isn't blurable, then don't loose
+			// focus
+			if (e) {
+				e.preventDefault();
+			}
+		}
+		else {
+			this._blur();
+		}
+	},
+
+
+	/**
+	 * Create a hidden input element that can receive focus on behalf of the
+	 * table
+	 *
+	 * @private
+	 */
+	_tabInput: function ()
+	{
+		var that = this;
+		var dt = this.s.dt;
+		var tabIndex = this.c.tabIndex !== null ?
+			this.c.tabIndex :
+			dt.settings()[0].iTabIndex;
+
+		if ( tabIndex == -1 ) {
+			return;
+		}
+
+		var div = $('<div><input type="text" tabindex="'+tabIndex+'"/></div>')
+			.css( {
+				position: 'absolute',
+				height: 1,
+				width: 0,
+				overflow: 'hidden'
+			} )
+			.insertBefore( dt.table().node() );
+
+		div.children().on( 'focus', function (e) {
+			var cell = dt.cell(':eq(0)', that._columns(), {page: 'current'});
+
+			if ( cell.any() ) {
+				that._focus( cell, null, true, e );
+			}
+		} );
+	},
+
+	/**
+	 * Update fixed columns if they are enabled and if the cell we are
+	 * focusing is inside a fixed column
+	 * @param  {integer} column Index of the column being changed
+	 * @private
+	 */
+	_updateFixedColumns: function( column )
+	{
+		var dt = this.s.dt;
+		var settings = dt.settings()[0];
+
+		if ( settings._oFixedColumns ) {
+			var leftCols = settings._oFixedColumns.s.iLeftColumns;
+			var rightCols = settings.aoColumns.length - settings._oFixedColumns.s.iRightColumns;
+
+			if (column < leftCols || column >= rightCols) {
+				dt.fixedColumns().update();
+			}
+		}
+	}
+} );
+
+
+/**
+ * KeyTable default settings for initialisation
+ *
+ * @namespace
+ * @name KeyTable.defaults
+ * @static
+ */
+KeyTable.defaults = {
+	/**
+	 * Can focus be removed from the table
+	 * @type {Boolean}
+	 */
+	blurable: true,
+
+	/**
+	 * Class to give to the focused cell
+	 * @type {String}
+	 */
+	className: 'focus',
+
+	/**
+	 * Enable or disable clipboard support
+	 * @type {Boolean}
+	 */
+	clipboard: true,
+
+	/**
+	 * Orthogonal data that should be copied to clipboard
+	 * @type {string}
+	 */
+	clipboardOrthogonal: 'display',
+
+	/**
+	 * Columns that can be focused. This is automatically merged with the
+	 * visible columns as only visible columns can gain focus.
+	 * @type {String}
+	 */
+	columns: '', // all
+
+	/**
+	 * Editor instance to automatically perform Excel like navigation
+	 * @type {Editor}
+	 */
+	editor: null,
+
+	/**
+	 * Trigger editing immediately on focus
+	 * @type {boolean}
+	 */
+	editOnFocus: false,
+
+	/**
+	 * Select a cell to automatically select on start up. `null` for no
+	 * automatic selection
+	 * @type {cell-selector}
+	 */
+	focus: null,
+
+	/**
+	 * Array of keys to listen for
+	 * @type {null|array}
+	 */
+	keys: null,
+
+	/**
+	 * Tab index for where the table should sit in the document's tab flow
+	 * @type {integer|null}
+	 */
+	tabIndex: null
+};
+
+
+
+KeyTable.version = "2.5.1";
+
+
+$.fn.dataTable.KeyTable = KeyTable;
+$.fn.DataTable.KeyTable = KeyTable;
+
+
+DataTable.Api.register( 'cell.blur()', function () {
+	return this.iterator( 'table', function (ctx) {
+		if ( ctx.keytable ) {
+			ctx.keytable.blur();
+		}
+	} );
+} );
+
+DataTable.Api.register( 'cell().focus()', function () {
+	return this.iterator( 'cell', function (ctx, row, column) {
+		if ( ctx.keytable ) {
+			ctx.keytable.focus( row, column );
+		}
+	} );
+} );
+
+DataTable.Api.register( 'keys.disable()', function () {
+	return this.iterator( 'table', function (ctx) {
+		if ( ctx.keytable ) {
+			ctx.keytable.enable( false );
+		}
+	} );
+} );
+
+DataTable.Api.register( 'keys.enable()', function ( opts ) {
+	return this.iterator( 'table', function (ctx) {
+		if ( ctx.keytable ) {
+			ctx.keytable.enable( opts === undefined ? true : opts );
+		}
+	} );
+} );
+
+DataTable.Api.register( 'keys.move()', function ( dir ) {
+	return this.iterator( 'table', function (ctx) {
+		if ( ctx.keytable ) {
+			ctx.keytable._shift( null, dir, false );
+		}
+	} );
+} );
+
+// Cell selector
+DataTable.ext.selector.cell.push( function ( settings, opts, cells ) {
+	var focused = opts.focused;
+	var kt = settings.keytable;
+	var out = [];
+
+	if ( ! kt || focused === undefined ) {
+		return cells;
+	}
+
+	for ( var i=0, ien=cells.length ; i<ien ; i++ ) {
+		if ( (focused === true &&  kt.focused( cells[i] ) ) ||
+			 (focused === false && ! kt.focused( cells[i] ) )
+		) {
+			out.push( cells[i] );
+		}
+	}
+
+	return out;
+} );
+
+
+// Attach a listener to the document which listens for DataTables initialisation
+// events so we can automatically initialise
+$(document).on( 'preInit.dt.dtk', function (e, settings, json) {
+	if ( e.namespace !== 'dt' ) {
+		return;
+	}
+
+	var init = settings.oInit.keys;
+	var defaults = DataTable.defaults.keys;
+
+	if ( init || defaults ) {
+		var opts = $.extend( {}, defaults, init );
+
+		if ( init !== false ) {
+			new KeyTable( settings, opts  );
+		}
+	}
+} );
+
+
+return KeyTable;
+}));
