Removes analogIndex from Game::gamepadEvent.  Gamepad events other than connect/disconnect will no longer be sent to games -- they are only used internally by forms.
Merge branch 'next' of https://github.com/blackberry/GamePlay into next

Conflicts:
	gameplay-tests/src/TestsGame.cpp
	samples/browser/src/FormsSample.cpp
Fixing the FormsSample from the merge.
Updating the luagen doxyfile to use the correct relative path.
Updating the lua bindings.
Reverting changes to project files that would have enabled XInput by default (with paths specific to my machine).
Merging gameplay.sln
Merge pull request #952 from ablake/next

Gamepad form input changes.