support rapid tags

[abma]

not sure how to implement as (atm) BuildGit can't recognize new tags.

maybe make BuildGit update the git repository? (afaik libgit2 supports updating)

[abma]

maybe make BuildGit update the git repository? (afaik libgit2 supports updating)

feels wrong, BuildGit should stay "stupid".

maybe just check for tags on each commit? so it has to be tagged prior pushing.

[abma]

maybe http://gitpython.readthedocs.org/en/stable/ ?!