finish fleshing out main tooltip demo page; rename included OpenSans font to not conflict with other uses of the font; rename all demo.html -> index.html
Merge branch 'master' of github.com:mozilla/app-components

Conflicts:
	calendar/demo/demo.html
	calendar/demo/index.html
	component/appbar
	component/calendar/demo/index.html
	component/datepicker/demo/index.html
	component/deck/demo/index.html
	component/flipbox
	component/iconbutton/demo/index.html
	component/layout
	component/modal
	component/slidebox
	component/slider/demo/index.html
	component/tabbar/demo/index.html
	component/toggle
	component/togglegroup/demo/index.html
	datepicker/demo/demo.html
	datepicker/demo/index.html
	deck/demo/demo.html
	deck/demo/index.html
	iconbutton/demo/demo.html
	iconbutton/demo/index.html
	slider/demo/demo.html
	slider/demo/index.html
	tabbar/demo/demo.html
	tabbar/demo/index.html
	togglegroup/demo/demo.html
	togglegroup/demo/index.html
readd missing/broke submodules