Copyright 2012 Citrix Systems, Inc. Licensed under the 
Apache License, Version 2.0 (the "License"); you may not use this
file except in compliance with the License.  Citrix Systems, Inc.
reserves all rights not expressly granted by the License.
You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and 
limitations under the License.