Created a User model
Added initial validations for user model
added users#show and changed logo
	* Added a basic user show page
	* Logo now has some text, doesn't look as weird... probably.
* Added password and confirmation attribute
* Added encrypted password attribute
* Added tests for the above
Added secure password machinery
Oops: Forgot to add files! MIXED commit this one
Added factories and tests for /users/show
Added gravatar to user show page
Added a sidebar for a badass user page