change ui of navbar
change ui with bootstrap class
Merge branch 'master' of https://github.com/Green-Snake-Platinum-Kangaroo/kitchencooks

Conflicts:
	public/stylesheets/chat-bar.css
	public/stylesheets/style.css
	public/stylesheets/videoFaces.css
Merge pull request #13 from victorleungtw/master

fix some UI issue