Bump version for 1.4.4-rc.3 release.

Bump package versions for 1.5-beta.13 release.

Bump package versions for 1.4.4-rc.2 release.

We (@abernix and I) have decided to abandon 1.4.3.3 in favor of 1.4.4,
because the changes we wanted to include are slightly more significant
than seems appropriate for a "patch" update.

Bump package versions for 1.4.3.3-rc.1 release.

Bump package versions for 1.4.3.3-rc.0 release.

Bump package versions for 1.5-beta.12 release.

Bump package versions for 1.4.3.3-beta.4 release.

Bump package versions for 1.4.3.3-beta.3 release.

Bump package versions for 1.4.3.3-beta.2 release.

Bump package versions for 1.4.3.3-beta.1 release.