Uses CURL instead of wp_remote_request();

git-svn-id: https://plugins.svn.wordpress.org/rotatingtweets/trunk@767782 b8457f37-d9ea-0310-8a92-e5e31aec5664
Returning to wp_remote_request(); 

git-svn-id: https://plugins.svn.wordpress.org/rotatingtweets/trunk@767785 b8457f37-d9ea-0310-8a92-e5e31aec5664