Up Jquery and Backbone + Add realtime

* Up dependencies version to make it work properly with Android 4.4 browsers
* Add realtime capabilities to update automatically the view when a new contact is created.
* same as previsous for update and deletion.

Issue: On realtime update, the datapoints are not considered changed. So, the RemoteUpdate event is not triggered. But, the model is updated automatically by the realtime lib. It leads to a weird behavior the contact view (if the contact is displayed) is properly updated but the concact view in the contact list doesn't change. I don't know how to handle that bug. Maybe @aenario  could help.