update 2.1
* Added subscribe via the registration page
* Campaign names and Web Forms are now sorted by name
* Added checking if curl extension is set and curl_init method is callable
* Removed typo and deprecated unused params
* Tested up to: 3.9.1

git-svn-id: https://plugins.svn.wordpress.org/getresponse-integration/trunk@910879 b8457f37-d9ea-0310-8a92-e5e31aec5664