fix character entities for docbook-xml-4.5 (ALT#30725)

swapped back /usr/share/xml/docbook/catalog and /etc/sgml/docbook/xmlcatalog
TODO: investigate behaviour of xmllint/libxml2.

moved /usr/share/xml/docbook/catalog to /etc/sgml/docbook/xmlcatalog.
added trigger to manage a symlink at the old location.
added compat symlinks for Fedora and Mandriva compatibility.

I hereby claim the ownership of the package ;)
refreshed patches from fedora srpm (cosmetics only).
changed: License Tag

Minor cleanups

Fixed build with fresh autotools.

Synchronized with 0.6.3-14 from RedHat
XML character entities version 0.3
Added /etc/sgml/catalog to the file list

rebuild

New XML character entities from the DocBook project

Removed xml filter for buildreq because XML catalog system doesn't
Added centralized DocBook DTD catalogs to the buildreq ignore filter
Added /usr/share/sgml/xml.dcl to the file list
Create an XML catalog for XML ISO entities

Added xml filter for buildreq.

Added sgml filter for buildreq.

Synchronized with RedHat 0.6.3-8
Updated URL that was just smoking crack
Added delegation to ISO entities to docbook catalog

Added directories /usr/share/sgml{,docbook} to the sgml-common file list

Synchronized with Redhat 0.6.3-6
Removed all the wacky scripts -- sgml-common is going to be PreReq
related, no post(un)install hacks are necessary