Make sure the MANIFEST is up to date.
  $ make mani

Check for changes and commit if necessary.
  $ git diff
  $ git commit -v MANIFEST

Update docs/CHANGES.
  - Show the release number and date of release.
  - Add important changes.
  - Credit the author as appropriate.
  - Include RT numbers.

Commit the change.
  $ git commit -m 'Add changes for X.YZ release' docs/CHANGES

Update version number and date in Makefile.PL.
  - Then propagate the change.
  $ perl Makefile.PL && make

Generate META.yml
  $ make distdir
  $ cp Devel-Cover-X.YZ/META.yml .
  $ rm -r Devel-Cover-X.YZ

Run basic tests.
  $ perl Makefile.PL && make
  $ make test

Test against all versions.
  $ make all_test
  - or, if you have multiple cores available:
  $ HARNESS_OPTIONS=j7:c HARNESS_TIMER=1 make all_test

Return to base perl version.
  $ perl Makefile.PL && make

Run dist test.
  $ make disttest

Commit the change.
  $ git commit -a -m 'Update to version X.YZ'

Tag the release.
  $ git tag -a vX.YZ -m 'Release vX.YZ'

Make the distribution.
  $ make dist
