Form fields clear on validation error

[treyhunner]

Form fields for my age, gender, PGP key, and a number of other values cleared after the receiving the error mentioned in #34. I had to re-enter over half of the form information again.

I couldn't tell where these fields were in the registration form but I assume these fields don't use a Django form.

[leizleiz]

The Django 1.8 generated form on now stops the user from submitting if there is an invalid field, so it is a bit harder to reproduce this issue.