added "maven.compiler.source" + "maven.compiler.target" properties. This
helps compiling under Debian where these still default to Java1.5 and
result in compile errors
ignore eclipse settings file as this project is managed by Maven
PlayerStatus now approximates the seekPosition when in status "playing".
The property "seekPosition" should still be synchronized to the actual
player regularly but now gives good intermediate results.
PlayerManager needs a 'setSeekPos' method. PlayerCommandService needs to call it.
After moving tracks, PlayerCommandService needs to send notifications (playlistChangedNotification and playerStatusChangedNotification for the playbackQueuePos which might have changed)