Release Checklist

Do all of these things (somewhat) in order:

1. Update Cabal project version

See the second line of the file CarpHask.cabal.

2. Update the "Welcome to Carp X.Y.Z" REPL message

See Main.hs.

3. Update the blurb in README.md

See README.md

4. Update the changelog

TODO: Create CHANGELOG.md

5. Make a commit on master

$ git commit -m "Release X.Y.Z"

6. Tag the commit and push it

$ git tag vX.Y.Z
$ git push --tags