- optimized images
init
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	css/main.css
	img/bg-shadow.png
	img/bgBlue.jpg
	img/cse.png
	img/grid.png
	img/gridNumbers.png
	img/logo-ut.png
	img/logo.png
	index.html
	js/lib_func.js
	js/lib_global.js
	js/lib_obj.js
	js/main.js