Fix the files path for the provision editor.

git-svn-id: http://fusionpbx.googlecode.com/svn/trunk/fusionpbx@3798 e2954ef0-caed-11de-bd98-e341d93cc3cc
unset a few session variables.

git-svn-id: http://fusionpbx.googlecode.com/svn/trunk/fusionpbx@3799 e2954ef0-caed-11de-bd98-e341d93cc3cc