[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.
fixed context menu 'remove safely' selection
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
[id3v2] some apps write TXXX tags using UPPERCASE and some with lowercase. Support both.
depends: fix already installed check on osx

Avoid depending on .so files which could be .dylib on osx
Fix some invalid dependencies
FIX: [gles] do not force vsync off if VSYNC_DRIVER
Better caching and updating for dynamic list provider
Cosmetic changes
Merge pull request #4276 from koying/fixvsyncdriver

FIX: [gles] do not force vsync off if VSYNC_DRIVER
fixed: Auto extracted stream details were never stored the stacks
[PVR] added a unique id for each recording, valid as long as xbmc isn't reset
[PVR] added a unique id for each timer, valid as long as xbmc isn't reset
[PVR] let CPVRRecording implement ISerializable
[PVR] let CPVRTimerInfoTag implement ISerializable
json-rpc: add PVR.GetTimers, PVR.GetTimerDetails, PVR.GetRecordings and PVR.GetRecordingDetails