* Update LWJGL to 3.1.6
* Change LinkedLists to ArrayDeques
* Call glfwTerminate & set NULL error callback on destroy
fixes crash when context is re-created
* Added key remapping for GLFW key constants
* Rename AppSettings.getGammaCorrection() to isGammaCorrection()
* Use LWJGL3 artifacts from maven
* Minor compatibility changes for LWJGL 3.0.0b
* Fixed some minor bugs in LwjglWindow
Moved LWJGL 3.x repository definition to build.grade in that module.
Fixed an issue where frame rate limit would cause GLFW frequency window hint to be set rather than use a software limiter.
Removed LWJGLTimer for lwjgl3 module, no need for it any more, we'll just use the NanoTimer.
Removed LWJGLCanvas for lwjgl3 module, can't implement this so we'll leave it for now.