Now using pkg_resources.parse_version to parse the tag names and produce correct release ordering for each package
Instead of using a flag to set the revision control system across all packages you now specify the revision control system per package with a simple prefix:
[hg]http://myserver/hg/mypackage
[svn]https://myservr/svnmypackage
For backwards compatibility, all URLs without prefix are assumed to point to a Subversion repository.