Allow to set Skeleton's root bone index programmatically.
For a minor performance improvement, do not mark AnimatedModel skinning dirty if it does not contain bones.
Merge remote-tracking branch 'remotes/nemerle/valgrind_fixes'
Added contributor credit.
Fixed UI bug where positioning a window to the left partially outside the screen would cause GetElementAt() to stop working on the window's layouted child elements.
Travis CI: API documentation update at 2014-11-13 19:09:31 UTC.
[ci package]
Merge branch 'master' of github.com:urho3d/Urho3D into valgrind_fixes