Added be:: namespace files
removed extra stuff from Texture
texture/texture font work
Merge master onto peter, resolved app_entry conflict
Only errors on build relate to not being able to find certain files.  Mostly regarding source_handle.h, and due to that I will let Ben take care of teasing that out.  May want to add an actual material class again, but for now letting that sit.  Also need to figure out how we want textures loaded.