add User tests for presence and uniqueness
Merge pull request #6 from tiger-swallowtails-2013/db_setup

add User tests for presence and uniqueness
added login route to app.rb
added navbar to layout
added login erb page partial
added navbar patrial
finished signup and signin routes
Merge pull request #8 from tiger-swallowtails-2013/sessions_front_end

Looking good!
fixed merge conflict
adding config
changes require to include config directory
Merge pull request #9 from tiger-swallowtails-2013/sessions_front_end

Changes require to include config directory ok!
Merge branch 'master' into add_sessions
required session_helper