* Parse the "/autorevision.conf" file as last
* Add template class assign_once<T> which wraps a T object so that it can only be assigned to once (all following assignments will simply be NO-OPS)
* Make all RevisionInformation members an assign_once<T> object instead of a T object
* Make sure src/version.c can compile when there is little revision information available
* Add autorevision.conf which will provide a sane default for wc_uri ("trunk")
git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@2731 4a71c877-e1ca-e34f-864e-861f7616d084