Remove deprecated files, add utility function

utility function for javascript based form submission to fusebox
remove error.psp and send_email.psp
Refactor based on suggestions from @douginator2000

help_request.psp now submits form to itself
verification.psp now submits form to itself
    absorbed process_verification.psp
index.psp, removed deprecated error handling session variables
menu.psp, added "contact us" link at bottom of menu, @meganap should beautify
portal.psp, added printing of 'message' from form at top of page
Remove process_verification.psp