Added 4th output device

Added 4th output device selector in mpd.conf
Added Cubietruck Recognition

Added Cubietruck Recognition
Update player_lib.php
Improved SMB/CIFS mounting

Improved SMB/CIFS mounting. Install cifs-utils and sets guest as user if not credentials are set
Improved SMB/CIFS mounting

Improved SMB/CIFS mounting. Install cifs-utils and remove deprecated noatime and cache=strict options
Hide library panel

- Hide it
- Don't load it at startup
(but most of code is still there)