Merge pull request #3827 from MSOpenTech:license-26

platforms/winrt/setup_winrt.ps1

-<#
-Copyright  Microsoft Open Technologies, Inc.
-All Rights Reserved
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
+<#
+Copyright (c) Microsoft Open Technologies, Inc.
+All rights reserved.
 
-You may obtain a copy of the License at
-http://www.apache.org/licenses/LICENSE-2.0
+(3-clause BSD License)
 
-THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
-EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF TITLE,
-FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT.
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
 
-See the Apache 2 License for the specific language governing permissions and limitations under the License.
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
+following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or
+promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
 #>
 
 [CmdletBinding()]