fixed xbmc.python version for Gotham alpha10

set xbmc.python to version 2.1.0 now gotham alpha10
with this fix and my fix on cdartmanager git, you coan install and use cdartmanager on gotham alpha10
Merge pull request #3891 from Rah85/patch-1

fixed xbmc.python version for Gotham alpha10
ActiveAE: make sure to reopen sink after suspend, missed this after having dropped IsCompatible
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>
X11: fix multi-head setups
X11: remove all DefaultScreen and RootWindow macros