Checkpoint virtual mouse.
Add scrolling.
Move some joypad events to different tick events for better handling.
Refactor movement/button handling

Conflicts:
	MinecraftJoypadSplitscreenMod/src/com/shiny/joypadmod/VirtualMouse.java
	MinecraftJoypadSplitscreenMod/src/com/shiny/joypadmod/helpers/ModVersionHelper.java