Updates URL Parsing to be compatible with EE 2.8

EE 2.8 changed the way Control Panel URLs are structured. There are now 2 query marks sometimes, so this just checks for the module parameter in the referrer string and parses that as a variable.

Also doesn't load the EE array helper, since we're just checking against the assigned $module var.
Merge pull request #1 from noslouch/master

Updates URL Parsing to be compatible with EE 2.8