Merge pull request #442 from mttr/master

Fixes for namespaced enum changes made in glfw-rs
Resolved namespaced enum errors
Resolved MapAccess namespaced enum errors
Merge pull request #443 from mitchmindtree/master

Resolved namespaced enum errors in gfx_macros
Resolved all device and gl_device namespaced enum errors
Resolved remaining namespaced enum errors in both render and gfx libs
Fixed what I could in vertex_format test
Attempt to fix gfx_macros
Merge pull request #444 from mitchmindtree/master

Resolved all name-spaced enum errors