Added language file for backend
Updated language file & manifest
Merge branch 'feature-appstore-server' of github.com:joomla-projects/joomla-cms into feature-appstore-server
Changed dashboard response to JSONP, added client.js
Updated files from gev
Updated all views to use view.json.php
Added apps/css/client.css file for future use, but empty for now
Merge pull request #122 from beat/feature-appstore-server

Feature appstore server: Pull request with latest work from Ashwin and Gev, new language file, switch to JSONP and new views.