Progress report: adding CAPTCHA support to the setup wizard

Some of you might have found yourself being asked to solve a captcha when adding a new profile, with Raccoon providing no means to show the image nor accepting an answer.

The good news is, that I (probably) have a solution for this. Bad news are that the code is coming from a different project and needs to be adapted to Raccoon, which in a nutshell means rewriting the entire setup wizard from scratch, replacing the underlying login handler and adding a good chunk of helper code for good measure.

Sadly, the setup wizard is a complicated beast. It only has 4 data entry forms (of which only two are required), but those can be run through in about a dozen different ways that all require slightly different coding.

An optimistic estimate would be that I can get it done by the end of the week.