set dev url wrong, fixing

Author: Mark MacGillivray

js/oab.js

@@ -5,7 +5,7 @@ var oab = {
   test : false, // this sends requests with the test parameter set
   debug : true, // this puts the button in debug mode, issues debug warnings
 
-  api_address : 'https://dev.api.cottagelabs.com', // 'https://api.openaccessbutton.org',
+  api_address : 'https://dev.api.cottagelabs.com/service/oab', // 'https://api.openaccessbutton.org',
 
   site_address : 'https://oab.test.cottagelabs.com', // 'https://openaccessbutton.org',