support for import and detection of incomplete profile information

- new Perl script to generate JSON from CSV of KSD's spreadsheet

new page which shows profiles that are missing Twitter, Facebook, PN Profile or emails, that have empty profiles, are missing attributes or are missing major DiSC style

social links and email icons no longer appear if no URL or email address

updated superheroes/show controller to have DiSC-related properties return '' if no DiSC info available

Separately emailing you PN-related JSON for your testing.