Bite the bullet and release version 0.3.0.

It seems a little silly to have gone through so many betas and release candidates. How do folks feel about just declaring the project as-is to be 0.3.0? That way, instead of trying to figure out which of the existing pull-requests and/or issues are essential for a 0.3.0 release, we can just start incrementing the patch-number as we fix bugs.

P.S. I’d appreciate any opinions on what should constitute a quorum here.