[CEC] Added support for CEC buttons introduced by HDMI 1.4
      - CONTENTS_MENU
      - ROOT_MENU
      - TOP_MENU
      - DVD-MENU
      (Requires at least libcec 2.2.0)
[jenkins] - when trying to determine the branchname of a detached head revision - filter it so only branches from the currently built GITHUB_REPO are used (else we might pick the wrong branchname from another repo which was checked out before and contains the same revision)
Merge pull request #5659 from Memphiz/fixjenkinsremotes

[jenkins] - fix wrong branchnames at times
Merge pull request #5628 from ksooo/cec-hdmi-1-4-buttons
[Cosmetics] reserve window id's for skins
videoplayer: adapt lateness detection and dropping to buffering
video player: present correct pts to user for a/v sync (after buffering in renderer)
videoplayer: update frametime, it might change due to fps detection
videoplayer: give streams with invalid fps a chance for fps detection
dvdplayer: allow rewinding at end of stream, do a seek after rewind
dvdplayer: observe pts counter overflow
dvdplayer: avoid short screen flicker caused by unnecessary reconfigure of renderer
vdpau: advanced settings for auto deinterlacing
player: fix rewind
fix incorrect display of fps when dr kicks in
ActiveAE: slightly reduce buffer size
Revert "vdpau: comment some features that will be added later"

This reverts commit e00b4f65864d623ab4d2e9e5c06db138e661f1cf.
xbmc pr 3080
ActiveAE: add some debug logging
dvdplayer: rename codec ctrl flags