Remove the info functions.
Fix the image testing now that exceptions are thrown.
Remove Iphone PNG support from stb_image.
Add stb_image list of contributors back.
Fix not rewinding the input after testing for image formats.
Add gfm.image.stb_image to package.d
Rename SDL2Surface._owned to clarify that ownership only apply to the handle not the pxiel data.
Wraps SDL_CreateRGBSurface.
GFM now relies again on derelict-sdl2 ~master, to benefit from SDL_ConvertSurface constness fix.
Add TODO.
Add ability to convert/clone a SDL_Surface.

BREAKING CHANGE WITH DEPENDENCY ON derelict:sdl2 ~master => UPDATE YOUR SDL BINARY TO 2.0.1