* Transformed the config a bit.
* Added Backend::Basic#commit, call commit when one or more updates are
performed by the backend.
* Implemented commit for the LDAPv3 backend updating the serial and
calling an optional hook.
* Style fixes.
git-svn-id: svn+ssh://svn.luon.net/svn/ildus/trunk@11 65a33f86-aa00-0410-91be-cd1bf5efb309