Merge pull request #84 from slimsag/devel_glfw3.1

Make the package go-gettable (devel_glfw3.1)
Update to #74
Merge pull request #87 from slimsag/master

Fix undefined symbols on Windows. See go-gl/glfw3#82
Add Floating and AutoIconify window hints (See go-gl/glfw3#85).
Add Floating and AutoIconify to the change log.
Merge pull request #89 from slimsag/new_window_hints

Add Floating and AutoIconify window hints (See go-gl/glfw3#85).
Merge branch 'master' of https://github.com/slimsag/glfw3