Massive migration from GLUT/globals to Qt/class members.  Mostly there.
Merge branch 'master' of https://github.com/worklist/hifi

Conflicts:
	interface/src/Application.cpp
	interface/src/Application.h
Various fixes, removed the bulk of main.cpp.
Disable the menu shortcuts for "regular" keys when the chat entry is showing.
Missed some comments in transferring from main.cpp to Application.h; trying to
preserve original formatting.
Accidentally left a debug line in.
Allow changing the edit voxel size using the mouse wheel.
Merge branch 'master' of https://github.com/worklist/hifi

Conflicts:
	interface/src/main.cpp
Merge branch 'master' of https://github.com/worklist/hifi

Conflicts:
	interface/src/main.cpp
Merge branch 'master' of https://github.com/worklist/hifi
Merge branch 'master' of https://github.com/worklist/hifi
Merge pull request #304 from ey6es/master

Changed main globals to Application private members; switched from GLUT to Qt for windowing, input, menus.