add confirm method

lib/jam_ruby/models/user.rb

@@ -119,6 +119,10 @@ module JamRuby
     def following_count
       return self.followings.size + self.band_followings.size
     end
+    
+    def confirm_email!
+        self.email_confirmed = true
+    end
 
     def to_s
       return email unless email.nil?
@@ -304,7 +308,7 @@ module JamRuby
         # throws ActiveRecord::RecordNotFound if invalid
         user = User.find_by_signup_token!(signup_token)
         user.signup_token = nil
-        user.email_confirmed = true
+        user.confirm_email!
         user.save
         return user
       end