upgrade to vs2017. fix stack overflow attack.
diff --git a/xmltest.cpp b/xmltest.cpp
index 99ebc24..f6e83b5 100644
--- a/xmltest.cpp
+++ b/xmltest.cpp
@@ -2026,6 +2026,13 @@
 	}

 

 	{

+		// Bad bad crash.

+		XMLDocument doc;

+		doc.LoadFile("./resources/xmltest-5330.xml");

+		XMLTest("Stack overflow prevented.", XMLError::XML_ELEMENT_DEPTH_EXCEEDED, doc.ErrorID());

+	}

+

+	{

 		// Crashing reported via email.

 		const char* xml =

 			"<playlist id='playlist1'>"