header improvements
Merge branch 'master' of github.com:code-dot-org/dashboard
WIP: header popup tweaks
Merge branch 'master' of github.com:code-dot-org/dashboard

Conflicts:
	app/views/reports/user_stats.html.haml
header and popup UX tweaks
Merge pull request #88 from code-dot-org/headeruxtweaks

Headeruxtweaks