On branch master

On branch master
Changes to be committed:

      modified:   bin/grux.rb

* CHANGED: interpreter is now /usr/bin/ruby because of the -w argument
* ADDED: debug output function
* ADDED: debug output in several places
* CHANGED: server_address is now an instance variable
* CHANGED: searching now switches to the results
* ADDED: proper handler for playback state changes
* ADDED: proper handler for playlist changes
* ADDED: check if songinfo is set before using it
* CHANGED: resync_complete is now resync_completely and has been split
* up in several more specific functions