Travis CI: site documentation update at 2014-03-24 21:02:40 UTC.

Commit: https://github.com/urho3d/Urho3D/commit/0246ae607f1d0d1748e2427b57c81b33f7689ff9

Message: Improve Camera documentation. To avoid potential confusion, disable auto aspect ratio mode from Camera if aspect ratio is set explicitly, or if the Vector2 form of Camera::SetOrthoSize() is used.