Removed superfluous 'tracks' directory at the root of the repository.

Testing commits to github.

vendor/selenium/scripts/find_matching_child.js

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2004 ThoughtWorks, Inc
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+
+elementFindMatchingChildren = function(element, selector) {
+  var matches = [];
+
+  var childCount = element.childNodes.length;
+  for (var i=0; i<childCount; i++) {
+    var child = element.childNodes[i];
+    if (selector(child)) {
+      matches.push(child);
+    } else {
+      childMatches = elementFindMatchingChildren(child, selector);
+      matches.push(childMatches);
+    }
+  }
+
+  return matches.flatten();
+}
+
+ELEMENT_NODE_TYPE = 1;
+
+elementFindFirstMatchingChild = function(element, selector) {
+
+  var childCount = element.childNodes.length;
+  for (var i=0; i<childCount; i++) {
+    var child = element.childNodes[i];
+    if (child.nodeType == ELEMENT_NODE_TYPE) {
+      if (selector(child)) {
+        return child;
+      }
+      result = elementFindFirstMatchingChild(child, selector);
+      if (result) {
+        return result;
+      }
+    }
+  }
+  return null;
+}
+
+elementFindFirstMatchingParent = function(element, selector) {
+  var current = element.parentNode;
+  while (current != null) {
+    if (selector(current)) {
+      break;
+    }
+    current = current.parentNode;
+  }
+  return current;
+}
+
+elementFindMatchingChildById = function(element, id) {
+  return elementFindFirstMatchingChild(element, function(element){return element.id==id} );
+}
+