[Announce RFC] RFC Final Comment Period: Replace oppressive terminology with more accurate alternatives

Hey all,

This RFC (https://github.com/supercollider/rfcs/pull/10) has now entered Final Comment Period. In 14 days, discussion will end and the proposal will either be accepted, rejected or withdrawn. Please see https://github.com/supercollider/rfcs#discussing-an-rfc for information on how to participate in the discussion, and https://github.com/supercollider/rfcs#finalizing-an-rfc for information on what Final Comment Period means.

Please go to https://github.com/supercollider/rfcs/pull/10 for discussion.

Summary: Replace oppressive terminology with more accurate alternatives across the SuperCollider organization. In particular, switch all ‘master’ branches to ‘main’, avoid use of “master/slave”, “blacklist/whitelist”, and use gender-neutral language.