[tor-dev] [PATCH] Proposal 236 and voting

I inline a patch that specifies how voting should happen in proposal 236.

The changes reflect a discussion I had yesterday with nickm during the Tor IRC meeting.

BTW, while I like the simplicity of the new vote (just an integer), I'm afraid that this might hide any misconfigurations of the guardiness system in authorities. For example, maybe an authority is misconfigured and considers only 2 consensuses for guardiness data (instead of 6000 consensuses) and if it publishes only an integer percentage then we might not notice this misconfiguration. Maybe the number of consensuses parsed and the number of months considered should also be mentioned somewhere in the votes?