Implement fullscreen and window resize handling support in host-sdl.

Adds fullscreen support to host-sdl by first trying to enter fullscreen
at the current window resolution; if that fails, it tries again at the
current desktop resolution.  Also adds window resize event handling so
applications will respond to the resolution change properly.
Implement fullscreen and window resize handling support in host-sdl.

Adds fullscreen support to host-sdl by first trying to enter fullscreen
at the current window resolution; if that fails, it tries again at the
current desktop resolution.  Also adds window resize event handling so
applications will respond to the resolution change properly.
Implement mousewheel and touch support in host-sdl.

Add mousewheel and touch input event handling to host-sdl; start adding
multiple joystick event handling.
Fix MOAITextBox.revealAll not updating spooler

Fixed MOAITextBox.revealAll not updating the current spooler position, as
setReveal does.
Merge branch 'sdlhost-fullscreen-support' into custom
Fix MOAITextBox.revealAll not updating spooler

Fixed `MOAITextBox.revealAll` not updating the current spooler position, as
`setReveal` does.
Update:  Changed `mSpool` value so as not to overflow.
Merge branch 'fix-textbox-revealall' into custom

Conflicts:
	src/moai-sim/MOAITextBox.cpp