Fixed a bug in GameObject.IsChildOf() and updated tests.
Added working local and world positions to Transform and wrote some unit tests for them.
Fixed a bug in GameObjectEnumerator

The IEnumerator was comparing the given version to the version of the
pointer instead of to that of the owner.
Added scaling in local and world space.
Removed LemCsharp.userprefs.
Updated .gitignore file.
Added Transform.ScaleBy (uniform scaling) and fixed a bug in Transform.Scale.
Added Transform.ScaleBy (non-uniform) and added more tests.