Added support for 9.3
Changed immutable to const in some functions. Making them immutable wasn't good idea, because
user code must have his all variables immutable or cast everywhere to immutable.
Replaced const Type* with const(Type)*
Merge pull request #122 from NCrashed/master

DerelictPQ: update for 9.3
Removed rdmd instructions from the readme.
A few incorrect function signatures in sfml2.
Updated the SDL2_image binding to the latest release candidate.
Corrected library names for SDL2_image on Posix.
Updated the glfw3 binding to the new glfw 3.0.0 release.
Removed download links for glfw3 and sdl2 dlls from the readme, since binaries are now provided by each project.
Removed the SDL2 caveat from the readme.
Updated the SDL2_mixer binding to the 2.0 release candidate & corrected some minor errors.
Add package.json to be usable as a DUB package.
Merge pull request #126 from s-ludwig/master

Adds a package.json that works with the latest version of DUB
Added link to the gitbub contributors page in the authors array in package.json.

There are, at present, 31 contributors to Derelict other than myself. Rather than list them all in the authors field, I felt it better just to link to the github contributors page so that it can always be up to date.
Replaced the link in the authors field with a comment -- it may be causing a failure to register that package with the DUB registry.
Put the contributors URL back int the authors field of package.json.
Errors in DerelictGL3's deprecatedConstants.d.

Removed GL_ONE and GL_ZERO. They are already defined in constants.d and aren't deprecated.
Added GL_CURRENT_BIT and GL_POINT_BIT.
When loading deprecated GL functions, the imaging subset of GL 1.2 should only be loaded when the driver supports GL_ARB_imaging.
Typo in the last commit.