Fixed delivering emails to users.

There was a bug in User#receive_email? Return values are now true or false, not '1' or '0'.

app/models/user.rb

@@ -66,7 +66,7 @@ class User < ActiveRecord::Base
   end
 
   def receive_email?
-    settings.messages['send_as_email'] == "1" && email.present?
+    settings.messages['send_as_email'] && email.present?
   end
   
   # Sets the user's password. It will be stored encrypted along with a random salt.