[pvr] EPG hookdata: Return UniqueBroadcastID

Returns epgUid known by client instead unset data.
[gui] adds listitem info label inprogress to determine if epg item is in progress

This adds a new listitem info label inprogress which indicates if the
associated epg tag points to a current ongoing program.
libdvdcss-1.2.12 removed _XBOX unneeded patches
libdvdcss-1.2.12 updated diff files
libdvdcss update to 1.2.13 - incl diff file
libdvdread-libdvdnav update to 4.2.1
libdvdread-libdvdnav - remove unused xbmc patches
libdvdread-libdvdnav - updated diff files
correct codec names, MPEG is always written in upper-case
[cosmetic] add missing "l" in some comments
[epg] get rid of orientation support
Added Container.IsUpdating
[epg] cleanup: refactor/remove methods MoveChannel and MoveProgrammes
[epg] cosmetics: refactor, code formatting etc.
[epg] cleanup: remove unnecessary method CorrectOffset()
[epg] cosmetics: code formatting
[epg] cleanup: remove friend class declaration PVR::CGUIWindowPVRGuide
FIX: [mediacodec] ART is not happy with non-existent values in map
Introduce Amlogic M8 4K video format on Android 4.4
[droid] fixed stutter under MediaCodec. We need to wait a little longer before we think the frame is late