Fix failing spec.
Add devise_token_auth gem.
Install OmniAuth.
Run devise_token_auth installation.
Merge branch 'master' into authentication

Conflicts:
	Gemfile.lock
Add some authentication configuration.
Add devise_token_auth routes.
Make sign-in/out happy path work (no tests yet).
Add sign-in spec.
Add beautification to build.
Upgrade ng-token-auth.
Add spec for sign-in.
Add spec for invalid credentials.
Fix sign-out cursor.
Remove unused specs.
Fix link cursor.
Merge branch 'authentication' of https://github.com/jasonswett/lunch_hub into authentication
Revert "Fix sign-out cursor."

This reverts commit f8e5585f96f6893e98365432cf9254c31233f473.
Fix active header nav items.
Enable HTML5 pushState.