Merge pull request #38 from jotak/master

Incremental updates in PHP so that it can be run directly from webui
Fixed shairport bug
Responsive library

Switching to tabs view when screen get too small
+ remove duplicates
Library: paginate loading
Implement leaf-descriptor for restmpd

+remove duplicates in lists
+add "title" file info on tracks
Use mipod (rest mpd nodejs module) for most of MPD controls

+some refactor to organize JS in more files
Continue on switching from php to node

+clean code
Continue on moving to nodejs

- config nginx for nodejs proxy
- remove now useless forward.php
- refactor db browsing, remove old methods
Library toolbar

Force reload, status text, remove old loader, add spinner class, etc.