Tag roottest for v6.22/08.

rootest for ROOT 6.22/06.

Tag roottest for patch release v6.22/04.

Tag roottest for patch release v6.20/08.

Tag roottest for v6.22/02.

Tag roottest for ROOT v6.22/00.

Tag roottest for patch release v6.20/06.

roottest tag for new v6-23 development cycle leading to v6.24.

roottest tag for v6-22-00-rc1 (aka 6.21/02).

roottest tag for v6.21/02 (aka v6-22-00-rc1).