Change Details

Arcanist should be a tool not a process mandate. We self merge changes from time to time now and its fine. Mostly this comes up for deploys but is also a useful (expert) tool for small, new projects - especially when you are working alone and many weeks away from a first release. These are the realities as they stand now. If we want to change this then lets do that but I don't want us to change it simply because a tool forces it on us. I think it'd be more useful to switch to arcanist and _then_ have the discussion about whether or not we should turn off self merges.