httpd-xxx.conf and fix configuration if APACHE_VERSION > 20.
- Don't use the MCAL back-end by default for Kronolith, it is
deprecated.
- Deinstall bug reported by John Nielsen <john (at) jnielsen.net>:
respect LHORDEDIR.
- Fix horde-passwd installation / deinstallation.
- Don't bump PORTREVISION, because running installations are not
concerned.
The major changes compared to the Chora 1.x versions are:
* Subversion support
* Patchset information
* Cvsgraph integration
* Simple commit statistics
* Access keys.
* mod_rewrite support for prettier URLs.