[release] version bump to 13.0 alpha5 as we start new merge window.
[xcode] add iOS and ATV2 Target to main Xcode project
* iOS Target added
* ATV2 Target added
* add build phases from iOS project
* add build phases from ATV2 project
* factor out most of the configuration into xcconfig files
  this should help in tracking down changes in the build configs,
  make diffs easier and such.
* provide a xcconfig cascade for the project level (Common -> Debug/Release)
  as well as on the target level (App -> App-OSX/App-iOS/App-ATV2)
* add xcconfig and after buildstep scripts to xcode for easy editing
[xcode] move all after buildsteps into external 'command' shell scripts for easy diffs
[ios] remove unused XBMC-iOS and XBMC-ATV2 xcodeproject
[jenkins] adjust build steps to point to iOS and ATV2 Target for using the new merged xcode project
[doc] - updated READM.ios for using the merged xcode project
[xcode] remove UnrarXLib{.sln,.vcproj} from xcodeproject
SoftAE: make sure we hold sink lock when we consume and write to sink

This make sure that sink delay and buffers are kept in line.
SoftAE: let SoftAEStream share SoftAE stream lock

This avoids holding an internal stream lock, while soft ae
is trying to read out new frames and allow us to properly
hold lock while requesting delays.
softae: use correct number of bytes when consuming from src buffer
softae: add fail safe to WriteSink to avoid deadlocking on broken output
softae: verify we have enough samples in WriteSink

Some other thread may have killed the buffer behind our backs
softae: make sure we hold sink lock when we kill of sinks
dvdplayer: factor out render config flag from OutputPicture
dvdplayer: cosmetic alignment of checks
renderer: split out frame move from render action in video renderers
renderer: move waiting for next frame into rendermanager
core: drop Update() from IPlayer and paused state from renderer

We never called it on players and we never asked renderer to pause
renderer: fix race condition in FlipPage
move NUM_BUFFERS up to BaseRenderer.h