Travis CI: site documentation update at 2014-02-12 21:18:55 UTC.

Commit: https://github.com/urho3d/Urho3D/commit/e44e3f76523a0a33c2d86ff63b4d7a787ef85aa4

Message: Only signal work items that have specified or higher priority in WorkQueue::Complete(), to prevent lower priority work item events triggering when they shouldn't (in the middle of render update.) Set explicit max priority in Octree & View items, but leave default priority to the lowest for user items. Removed a static variable from WorkQueue::PurgePool().