Move MatrixChat and login components to react SDK.

Removed Modulator as it is no longer necessary in this form. ConferenceHandler
is injected in src/vector/index.js

src/index.js

@@ -15,16 +15,11 @@ limitations under the License.
 */
 
 var Skinner = require('./Skinner');
-var Modulator = require('./Modulator');
 
 module.exports.loadSkin = function(skinObject) {
     Skinner.load(skinObject);
 };
 
-module.exports.loadModule = function(moduleObject) {
-    Modulator.loadModule(moduleObject);
-};
-
 module.exports.resetSkin = function() {
     Skinner.reset();
 };