Merge pull request #151 from ims21/master

changed GMEPG events colors for better visibility
Adjustments for multiple choices in MessageBox simple screen
Small adjustements to previous commit
Limit choices visable at once to 5 for Message box

As there is limited space on a screen... And also center it in hight.
Remove SleepTimerEdit Screen as it is not required anymore
Add png to highlite events from current service is GMEPG
added StreamingChannelFromServer plugin