Minor fixes needed for last_timeline to work.

* Added route back for PUT /ts_api/user/<username>
* Fixed typo in ``ts_api:put_user/2``.
* Fixed incorrect expected return from ``ts_ext_data:set_property/3``.
* Added missing assignment for ``ts_user.email`` in the appropriate
  ``ts_json:construct_record/3`` clause.
* Fixed model attribute assignment in ``ts.js``.

www/js/ts.js

@@ -559,7 +559,7 @@ $(document).ready(function(){
                 this.entries.collection.timeline = tl;
 
                 // update the last_timeline field of the user model
-                this.user.model.set('last_timeline', tl.get('id');
+                this.user.model.set({last_timeline: tl.get('id')});
                 this.user.model.save();
 
                 // refresh TimelineListView