Cleanup README.md, update Backbone, rebuild docs and minified build.

Former-commit-id: 8f54e0a4b76cf1a42c11ca37f3e8672a75178d30

vendor/backbone/test/environment.js

@@ -0,0 +1,39 @@
+(function() {
+
+  var Environment = this.Environment = function(){};
+
+  _.extend(Environment.prototype, {
+
+    ajax: Backbone.ajax,
+
+    sync: Backbone.sync,
+
+    setup: function() {
+      var env = this;
+
+      // Capture ajax settings for comparison.
+      Backbone.ajax = function(settings) {
+        env.ajaxSettings = settings;
+      };
+
+      // Capture the arguments to Backbone.sync for comparison.
+      Backbone.sync = function(method, model, options) {
+        env.syncArgs = {
+          method: method,
+          model: model,
+          options: options
+        };
+        env.sync.apply(this, arguments);
+      };
+    },
+
+    teardown: function() {
+      this.syncArgs = null;
+      this.ajaxSettings = null;
+      Backbone.sync = this.sync;
+      Backbone.ajax = this.ajax;
+    }
+
+  });
+
+})();