Protect timeshift at least during normal zapping

But still the movieplayer, scanning for (new) channels and a lot of
plugins might abort a timeshift in progress. Usually any time when
stopService is called the timeshift will be stopped. I could not find
a general way to protect a timeshift in progress. At least I hope
that the function I did create in InfoBarGenerics could be used in
some kind of universal way in case the timeshift protection will be
extended to other functionality.
Make the timeshift protection code a bit more readable
Protect timeshift when selecting a movie
elistboxcontents: add sanitycheck on template color lookup

Template colors abuse an alpha channel of 0xff, to indicate
the color value should be used as an index in the template data.
However, when a full-transparent color is used, we we will
not have template data. In that case, assume the color
value should be used as-is.
Timeshift protection fix for PTS and simplify some code

Now use Stop Timeshift which was already translatable and use
the same messagebox as for stop timeshift. This might also fix
some other plugins that hack into the InfoBar
Timeshift Protection Improve Movieplayer handling
Add timeshift protection in mediaplayer plugin
Add Timeshift Protection to scan setup
Merge branch 'master' of git://openpli.git.sourceforge.net/gitroot/openpli/enigma2