Added logging for empty group sync.

Alfred Schmid

2014-02-03 03c0191b65c68dc6be3da0e0056bcb3cbc6e9cef

 src/main/java/com/gitblit/manager/GitblitManager.java

@@ -634,6 +634,11 @@
   }

   @Override
   public String getCookie(HttpServletRequest request) {
      return authenticationManager.getCookie(request);
   }

   @Override
   public void setCookie(HttpServletResponse response, UserModel user) {
      authenticationManager.setCookie(response, user);
   }