Changing package copyright notice

Author: fabiocav

build/common.props

@@ -16,7 +16,7 @@
     <PackageProjectUrl>http://go.microsoft.com/fwlink/?LinkID=320972</PackageProjectUrl>
     <RepositoryUrl>https://github.com/Azure/azure-functions-host</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
-    <Copyright>© .NET Foundation. All rights reserved.</Copyright>
+    <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
     <PackageRequireLicenseAcceptance>True</PackageRequireLicenseAcceptance>
     <PackageLicenseUrl>http://www.microsoft.com/web/webpi/eula/aspnetcomponent_rtw_enu.htm</PackageLicenseUrl>
     <PackageIconUrl>https://raw.githubusercontent.com/Azure/azure-webjobs-sdk/dev/webjobs.png</PackageIconUrl>