created reputations table
added association relationships for reputations model
removed resource for reputations and added nested update route for reputations
changed route to update action for reputations controller
linked voting links to reputations#update controller action
added :user_id attribute to attr_accessible for user model
remove :user_id attribute from user model attr_accessible and added attr_accessible for reputation model
send reputation value in post voting link
added reputation class method to create or update a reputation
shortened method for creating/updating reputation
set up update action in reputation controller