Merge pull request #1485 from sharwell/fix-1483

Add Roslyn license notice to LICENSE file

Author: sharwell

LICENSE

@@ -16,6 +16,21 @@ specific language governing permissions and limitations under the License.
 This project uses other open source projects, which are used under the terms
 of the following license(s).
 
+.NET Compiler Platform ("Roslyn")
+
+  Copyright Microsoft.
+
+  Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+  these files except in compliance with 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.
+
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   Copyright 2014 Giovanni Bassi and Elemar Jr.