Improved error message when user lacks admin rights.

Author: Alex Fernández

lib/api.js

@@ -50,8 +50,14 @@ function createHooks(reponame, url, secret, token, callback) {
     .end(function (err, res) {
       if (err) return callback(err);
 
+      var badStatusErr;
+      if (res.statusCode === 404) {
+        badStatusErr = new Error('Cannot create webhooks; are you sure you have admin rights?');
+        badStatusErr.statusCode = res.statusCode;
+        return callback(badStatusErr);
+      }
       if (res.statusCode !== 201) {
-        var badStatusErr = new Error('Bad status code: ' + res.statusCode);
+        badStatusErr = new Error('Bad status code: ' + res.statusCode);
         badStatusErr.statusCode = res.statusCode;
         return callback(badStatusErr);
       }