[pvr] fix built-in PlayMedia with PVR channels and recordings (Trac #15164)
[pvr] adds parental lock check to PlayMedia()
[infomanager] fix missing seekoffset label when seeking chapters
[system colors.xml] correct wrong colors and spelling
Merge pull request #5919 from mkortstiege/chapter_seekoffset

[dvdplayer] calculate seekoffset when performing chapter seeks
Merge pull request #5920 from hudokkow/system_colors

[system colors.xml] correct wrong colors and spelling
Merge pull request #5897 from xhaggi/pvr-fix-playmedia

[pvr] fix built-in PlayMedia with PVR channels and recordings (Trac #15164)