[lang] update of internal addon language files
[lang] update of core language files
[lang] update of skin.confluence language files
version bump to 13.0 beta4
[gui] fix crash if an info expression (with square brackets) wasn't correctly closed off by a skin.
Merge pull request #4445 from ruuk/stopsfx

Add xbmc.stopSFX() to the python xbmc module.
Merge pull request #4475 from popcornmix/pisink_update

[PiSink] Fixes for underrun, passthrough and multichannel
Merge pull request #4460 from koying/fixdroidx86ffmpeg

FIX: [droid;x86;ffmpeg] disabling mmx on recent gcc actually causes crashes
Merge pull request #4473 from Black09/constants

Enable constants for centerleft and centertop
[music] content type wasn't set in a bunch of cases. fixes #14915, fixes #15057
[addons] ensure we exit the lock prior to calling PrunePackageCache() as this takes ages, and will grab graphicscontext lock, leading to deadlocks
videoplayer: adapt lateness detection and dropping to buffering
video player: present correct pts to user for a/v sync (after buffering in renderer)
videoplayer: some rework and documentation
renderer: bump buffers to 5
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
X11: ditch SDL for video and window events
X11: Add xbmc icon