Openbossa theme bootstrap
fix initial auto-slide overridev #525
readme update for #505
ensure all future fragments are invisible #473
Merge branch 'dev' of github.com:hakimel/reveal.js into dev
Merge remote-tracking branch 'remotes/figueredo/theme-openbossa'

Conflicts:
	Gruntfile.js
Merge remote-tracking branch 'remotes/hakimel-original/dev'

Conflicts:
	js/reveal.js
	js/reveal.min.js