Tagging tip of release/1.9 branch as 1.9.0.1.

Tagging r23214 as 1.9.0.

Tagging the 1.8.0 release

Tag the 1.5.0 release.

Tag the 1.4.0 release

Tag the 1.2.1 release, revision 18029, shipping 2010-12-16.

Tag the 1.2.0 release, branch revision 17927, shipped 2010-10-21.

Tag release 1.1 from revision 17087.

Tag release 1.02 from revision 16423

Tag release 1.01 from revision 16330