Fixed email truncation issues, made a confirm page, made clans and made ...

...adjustable brain numbers
It looks like James Bowen also wrote a confirmation page here (but hasn't done anything with the code yet): https://github.com/jhb563/claremontHvZ/commit/410af2e7a3dce0a79a296870d9d704efca4a20f2

You might want to sync up with him.