Index: frontend/node_modules/recursive-readdir/index.js
===================================================================
--- frontend/node_modules/recursive-readdir/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/recursive-readdir/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,96 @@
+var fs = require("fs");
+var p = require("path");
+var minimatch = require("minimatch");
+
+function patternMatcher(pattern) {
+  return function(path, stats) {
+    var minimatcher = new minimatch.Minimatch(pattern, { matchBase: true });
+    return (!minimatcher.negate || stats.isFile()) && minimatcher.match(path);
+  };
+}
+
+function toMatcherFunction(ignoreEntry) {
+  if (typeof ignoreEntry == "function") {
+    return ignoreEntry;
+  } else {
+    return patternMatcher(ignoreEntry);
+  }
+}
+
+function readdir(path, ignores, callback) {
+  if (typeof ignores == "function") {
+    callback = ignores;
+    ignores = [];
+  }
+
+  if (!callback) {
+    return new Promise(function(resolve, reject) {
+      readdir(path, ignores || [], function(err, data) {
+        if (err) {
+          reject(err);
+        } else {
+          resolve(data);
+        }
+      });
+    });
+  }
+
+  ignores = ignores.map(toMatcherFunction);
+
+  var list = [];
+
+  fs.readdir(path, function(err, files) {
+    if (err) {
+      return callback(err);
+    }
+
+    var pending = files.length;
+    if (!pending) {
+      // we are done, woop woop
+      return callback(null, list);
+    }
+
+    files.forEach(function(file) {
+      var filePath = p.join(path, file);
+      fs.stat(filePath, function(_err, stats) {
+        if (_err) {
+          return callback(_err);
+        }
+
+        if (
+          ignores.some(function(matcher) {
+            return matcher(filePath, stats);
+          })
+        ) {
+          pending -= 1;
+          if (!pending) {
+            return callback(null, list);
+          }
+          return null;
+        }
+
+        if (stats.isDirectory()) {
+          readdir(filePath, ignores, function(__err, res) {
+            if (__err) {
+              return callback(__err);
+            }
+
+            list = list.concat(res);
+            pending -= 1;
+            if (!pending) {
+              return callback(null, list);
+            }
+          });
+        } else {
+          list.push(filePath);
+          pending -= 1;
+          if (!pending) {
+            return callback(null, list);
+          }
+        }
+      });
+    });
+  });
+}
+
+module.exports = readdir;