New changes to psummary

We have made some changes to the psummary generation scripts so that they can support the v5 servers and in general fix some bugs.  This is a complete, clean rewrite of a very, very old script (10 year old perl mess), which also bodes well for future fixes and changes.

Joseph Coffland (a software developer on the FAH team) has been working on this and has opened a thread to discuss this with third party developers: