[NPANDAY-578] ensure correct search order of AssemblyFoldersEx

Include other framework versions for v4.0 if they haven't previously been
encountered, and check the version to ensure the right product is picked up
(e.g. Azure libraries).

git-svn-id: https://svn.apache.org/repos/asf/incubator/npanday/trunk@1453743 13f79535-47bb-0310-9956-ffa450edef68