Branch layout:
master
The latest and greatest.
libkolabxml<major>.<minor>
Version branch for the <major>.<minor> product
series.
dev/*
Temporary development branches.
Versioning:
According to http://wiki.kolab.org/KEP:5
<major>.<minor>.<teeny>
Where major stands for the major format version, minor for larger releases and teeny for bugfix releases.