Set up role/ user relationships

app/models/role.rb

@@ -1,3 +1,5 @@
 class Role < ActiveRecord::Base
   attr_accessible :name
+
+  has_many :users
 end

app/models/user.rb

@@ -1,5 +1,8 @@
 class User < ActiveRecord::Base
   include Gravtastic
+
+  belongs_to :role
+
   gravtastic :size => 165, :filetype => :png, :rating => 'R'
     
   # Include default devise modules. Others available are: