Add feature: Ability to remove members of the group using api.Members…

….remove

lib/Stateless.js

@@ -200,6 +200,16 @@ api.Members.results = function(at, id, results_id, callback) {
   getRequest(at, "/groups/" + id + "/members/results/" + results_id, {opts:opts, doParse:true}, callback);  
 }
 
+// Remove members from a group
+// Only one member can be removed at a time.
+// The leader of the group cannot be removed.
+//  id [required]        - group_id string
+//  member_id [required] - The membership id of the member to remove
+//                         This is not the user ID. In the members key in the group JSON, this is the id value, not the user_id
+api.Members.remove = function(at, id, member_id, callback) {
+  postRequest(at, "/groups/" + id + "/members/" + member_id + "/remove", {responseCode:200}, callback);
+}
+
 /************************************************************************
 * Messages
 ***********************************************************************/