Bug Fixes
-=-=-=-=-

-Documentation now shows overridable theme values (though this needs to be documented).
-Detect when object transform is flipped and flip normals too.
-TileMap can specify bounce and friction for collision.
-Removed limit of 4 lights per object
-Added is_hovered() to buttons.
hoh# On branch master
Merge branch 'master' into develop
Merge branch 'develop' of https://github.com/sanikoyes/godot into develop