Improve build templates by not having to set ${triggers} in some cases.

There's no need to update triggers in the following cases:
 * Packages installing stuff into /usr/share/applications.
 * Packages setting $gtk_iconcache_dirs.
 * Packages setting $font_dirs.
 * Packages setting ${sgml,xml}_entries.

--HG--
extra : convert_revision : 11c74b41f8cf474e9bf4dbb961b1aa9c6f6540bf

srcpkgs/libglade/template

@@ -18,6 +18,10 @@ long_desc="
  with support for keyboard accelerators and automatic signal
  connection."
 
+# Register DTDs with xmlcatmgr.
+xml_entries="system http://glade.gnome.org/glade-2.0.dtd
+/usr/share/xml/libglade/glade-2.0.dtd"
+
 subpackages="$pkgname-devel"
 Add_dependency build pkg-config
 Add_dependency build python
@@ -25,7 +29,3 @@ Add_dependency full glibc
 Add_dependency full xmlcatmgr
 Add_dependency full gtk+
 
-# Register DTDs with xmlcatmgr.
-triggers="xml-catalog"
-xml_entries="system http://glade.gnome.org/glade-2.0.dtd
- /usr/share/xml/libglade/glade-2.0.dtd"