Added disable on screensaver

* Screensaver detection using xbmc.Monitor
* 2 new settings (disable_on_screensaver|last_profile)
* CapturePlayer:setProfile sets last_profile to store the profile last
used so script knows which profile to switch back to
* I used Google Translate to get the Russian translations, so they may
be incorrect
Merge pull request #3 from zanix/disable-ss

Add disable on screensaver ability