Button improvements

At Zultar and JMO's request, these changes:

* Add spacing between the save and ready buttons (to improve the mobile experience)
* Add confirmations to votes
* Add different confirmations when cancelling votes
* Add confirmations when muting a player
* Add confirmations for the make moderator admin actions on user profile pages

Additionally:

* Italian translations are provided for the new game messages (thanks to Chiara Tonini).
* Fixed a bug where "make forum moderator" would only show on a user's profile if that user was already a forum moderator.

The changes were tested manually on my install. Everything works fine, except:

* I couldn't get the lookup_examples to parse correctly in the admin locale interface - ("Undefined variable: error_context") I suspect that this is because of an unrelated issue.

------