-give popt VS2010 project file a project GUID so that it stops changing when project location is moved 
 http://social.msdn.microsoft.com/Forums/vstudio/en-US/5777b517-e935-4905-bf76-8f38d6d8913a/the-project-file-has-been-renamed-or-is-no-longer-in-the-solution-after-moving-solution?forum=vcgeneral

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10697 ddefafc4-47db-0310-ae44-fa13212b10f2