Switched to production ember

switched from debug version to production version. Updated ember from
1.9.0 to 1.9.1
Added user handle to get current user

returns the current user. contains information about if they're an
admin.  Authenticate returns the whole user object instead of just the
username
Added user route

Added user route to site, the contains a basic user page. Added links
logout and view the current logged in user page to the top bar links.
Application waits for user object load before starting up.