On the 13th September, the AdBlock team posted to Google+:
We at AdBlock believe that our users should have freedom. That’s why we block all ads by default and release our code for anyone at http://code.getadblock.com
… but apparently their belief in their users’ freedom doesn’t extend to mentioning that this code is available in a trackable, versioned form at github.com/srcshelton/adblock, because they removed my post saying this!
Now that, I have to say, is just rude…