Include time in version, if not exactly on a tag
Include time in version, if not exactly on a tag

This ensures that our version numbers will still be monotonic even when
building repeatedly with uncommitted changes, or when amending the top
commit.

neiljerram/felix,Metaswitch/calico,neiljerram/felix,neiljerram/felix,neiljerram/felix,matthewdupre/felix,matthewdupre/felix,Metaswitch/calico