Add angular-local-storage

See #98

Angular local storage is an abstraction using the $localStorage module,
but it provides cookie storage as a backup. This will be good for
browsers that do not implement the localStorage protocol. Which isn't
many these days, but it is good to be safe.

This method will ultimately fail if the user's browser doesn't support
localstorage and cookies are turned off.
Use localStoreageService to store currentUser

See #98
Look for currentUser in localStorage

See #98
If /#/games is visited without a currentUser:

Check localStorage, if still no currentUser, redirect to sf.home state.

See #98
Abstract user setup into more functions

See #98
Handles page refreshes

Closes #98
0.1.9
Merge branch 'feature/user-session-storage' into develop