Fixes the build for VS15
#U4-5453 Fixed

Enabling IIS Compression gives ERR_CONTENT_DECODING_FAILED in backoffice
Merge branch '7.1.9' into 7.2.0

Conflicts:
	src/SQLCE4Umbraco/SqlCEHelper.cs
#U4-5453 Fixed

#U4-5871
Enabling IIS Compression gives ERR_CONTENT_DECODING_FAILED in backoffice