added league model, finished league name validations
added uniqueness validation on league name
added user_id migration, finished associations between league and user
created league controller, working on league pages
created league index and show pages. WOP
initiated new league page
created new league page, added form and controller functionality
working on successfull save for creating league
working create league action
fixed user pages now do not show 'create a league' link when not signed in as that user
added pagination to league index.html.erb