InfoBarGenerics: Small adjugements on timeshift
ChannelSelection: Simplify some code
Shuts downs or standby receiver when not controlled for a while

Now it can be configured that the receiver shuts down or goes to standby
(also configurable) when the receiver is turned on but not controlled for
a specific number of hours. Default this feature is currently OFF.
Merge branch 'master' of git://openpli.git.sourceforge.net/gitroot/openpli/enigma2