Separated pAI and posibrain candidacy, fixed their jobbans.
You can now toggle special role candidacy for pAIs and Positronic Brains separately. A pAI jobban will now display correctly.  People will be banned from posibrain if they have a jobban on both AI and Cyborg (this is reflected in the character creation GUI as well). Using 'never for this round' on the pAI popup is no longer irreversible.