compilation changes

Signed-off-by: Emmanuel Mathot <emmanuel.mahot@gmail.com>
Merge branch 'master' of github.com:Terradue/DotNetOpenSearchKml

Signed-off-by: Emmanuel Mathot <emmanuel.mahot@gmail.com>

Conflicts:
	Terradue.OpenSearch.Kml/Terradue/OpenSearch/Kml/KmlOpenSearchResult.cs