Fixed parameter shadowing error in mrb_sprite
Fixed Font#draw_text args count, also set proper mrb type
Added Vector3#rotate stub
A more dynamic integrity test
Tried documenting the mrb_font
Updated TODO
Fixed TODO
Added Rect and Cuboid : #position and #size
reorganize the GUI code
Fixed core/load and core/gui require order
Added Table and DataMatrix default accessor
Merge branch 'master' into 3.3

Conflicts:
	core/gui.rb
Added Vector(2|3) #cross and #%
Added Spritesheet#cell_count

Exposed the Spritesheet total_sprites
Clean up Container a bit, and used the Eventable mixin

init_eventable is temporary until we figure out how to automatically do it.
Added Container#screen_to_relative, Container#relative_to_screen and Container#pos_inside?
Moved screen_to_relative and others to ScreenElement mixin module
Added ScreenElement#relative_pos_inside?
fix order
Merge branch 'master' into 3.3