*	CHANGED:	The method for finding the client IP address is more thorough, in a bid to work with Proxy servers etc.
*	FIXED:		PHP notice reported here: http://wordpress.org/support/topic/getting-errors-when-logged-in

git-svn-id: https://plugins.svn.wordpress.org/wp-simple-firewall/trunk@760568 b8457f37-d9ea-0310-8a92-e5e31aec5664