didn't include a catalog.xml file. Fix up the port so one is now able to
reinstall it. Note: most users will have to manually remove the 4.1.2
DocBook entry from /usr/local/share/xml/catalog.ports before upgrading this
port.
Finally beaten into looking at this by: truckman
to unbreak gtk-doc as well as removes a ton of gross hacks to support
the old location. Also, import some CVS patches from SK to fix some
potential crashes when installing bad catalogs.
While I tested this with a full SK database rebuild, problems may still
occur. Please let me know if you encounter any issues with OMF files
after this commit.