Fix English names of languages and add Ossetic.
Merge pull request #3320 from ace20022/fix_en_langnames

Fix English names of languages and add Ossetic.
CharsetConverter: fix: don't flip empty lines
Merge pull request #3321 from Karlson2k/charsetconverter_fix_01

CharsetConverter: fix for logicalToVisualBiDi
Merge pull request #3327 from FernetMenta/aefixes

ActiveAE: force resampler if dvdplayer requests it
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
X11: add SDL joystick until we have a better solution
X11: factor out code handling device reset notification
X11: move xrandr events to WinEventsX11
xrandr: remove method RestoreState
xrandr: observe orientation
xrandr: allow getting info for multiple screen's

Refactored by: Joakim Plate <elupus@xbmc.org>