Vanilla is a product of Lussumo:
Documentation and Support.
Awesome conversation that you linked to over on G+ Emperor.... though mildly disconcerting that it got overrun by furries at one point..... It will be interesting to see how they end up handling this.
It's fast becoming a power business/collaboration tool, like MS Office with knobs on. I could definitely see the guys at Weaponizer using something like this when working on editing fiction pieces or their magazine....