No error shown when leaving Full name empty, but submit button left disabled

[wstrm]

According to the API spec. the fullname field is not required, but this isn't throughly tested (I believe most stuff on the frontend will just display an empty full name, should maybe display the username at some places, and not anything in the search results).

So the quickfix in the mean time would be to just require the full name in the frontend, and display an error if empty, and then in the future fix the views.

I believe this one can be on hold.

[wstrm]

@Hjortsberg, I'll mark this as partially fixed.

[wstrm]

Partially fixed in #218