Merge pull request #9 from xtina-starr/calendar

Calendar
adds signout button and only permits logged-in users to post to/access calendar
finished adding things to the header
moved to UserController
added user and admin routes
added user and admin routes
adds features to front page
moved user_email spec to user controller spec
created admin controller spec
added user_email spec
Merge pull request #10 from xtina-starr/layout

Layout
merged and fixed merge conflicts
adds sweet custom menu layout for mobile
adds more styling and a tablet view
admin access
made current_user an instance method
wrote specs for AdminController
logged out users can see the tool library
idk
Merge pull request #11 from xtina-starr/layout

Layout