Attempt at better documentation for SceneElement subclasses
Bitmap: Add warning to 'flush()'
Plane, Sprite: Fix Bitmap flushes in draw handler

Comparing the current SceneElement classes to the earlier
written documentation actually immediatelly exposed some
bugs. Yay! :D
Spacing
MRI-Binding: Add 'System.puts()' for console printing
MRI-Binding: Enforce UTF-8 string encoding
Add patches for ruby source tree
Readme: mention ruby patches