ChangeLog: Drop this optional file
Users who need a history can get it from the Git repository, and the
file is optional since at least 2006 [1].
[1]: https://gitweb.gentoo.org/proj/pms.git/commit/?id=
81f522241733c87bcfca90b554082a2d0782cd8f
Oops, update timebook digest after adding ~amd64 keyword.
Add ~amd64 keyword to timebook, and update to EAPI 4.
Add python[sqlite] use dependency to timebook.
Add timebook package.