add content_tag into layouts/application.html.erb
-display error in login if user validation is incorrect

Add logic in create action in game controller.
-if user login information is incorrect display error
Add scrabble score to user profile view
Merging with upstream master
Merge branch 'master' of https://github.com/woolly-bear-caterpillars-2014/Tetroggleable into stephen
Merge stephen branch

Merge branch 'master' of https://github.com/woolly-bear-caterpillars-2014/Tetroggleable

Conflicts:
	app/views/layouts/application.html.erb