[FNA] #147 first pass cleanup for remainder of Graphics/ - this commit will be for more "structural" changes. more white space and tabbing fixes will be in separate commit
[FNA] #147 tabifying remaining Graphics/ files
[FNA] #147 cleanup for Graphics/ - rearranging overloads, fixing long lines, plus other random things I missed on first pass
Merge pull request #182 from extrahotchilipowder/monogame-sdl2

[FNA] #147 cleanup and tabifying of remaining Graphics/ files
Additional Graphics/ cleanup
Goddamnit Joe
Generic spacing cleanup
Fix += from Joe cleanup
A few increments...
Minor Content*Manager changes
Merge branch 'monogame-sdl2' into mgsdl2-glshader

Conflicts:
	MonoGame.Framework/Graphics/SpriteBatch.cs