Bug 540967 – docs build slowly because of entities

    Bug 540967 – docs build slowly because of entities
	* gtk/building.sgml:
	* gtk/changes-1.2.sgml:
	* gtk/changes-2.0.sgml:
	* gtk/compiling.sgml:
	* gtk/directfb.sgml:
	* gtk/glossary.xml:
	* gtk/gtk-docs.sgml:
	* gtk/gtk-query-immodules-2.0.xml:
	* gtk/gtk-update-icon-cache.xml:
	* gtk/migrating-GtkAboutDialog.sgml:
	* gtk/migrating-GtkAction.sgml:
	* gtk/migrating-GtkAssistant.sgml:
	* gtk/migrating-GtkBuilder.sgml:
	* gtk/migrating-GtkColorButton.sgml:
	* gtk/migrating-GtkComboBox.sgml:
	* gtk/migrating-GtkFileChooser.sgml:
	* gtk/migrating-GtkIconView.sgml:
	* gtk/migrating-GtkLinkButton.sgml:
	* gtk/migrating-GtkRecentChooser.sgml:
	* gtk/migrating-GtkTooltip.sgml:
	* gtk/migrating-checklist.sgml:
	* gtk/osx.sgml:
	* gtk/other_software.sgml:
	* gtk/question_index.sgml:
	* gtk/resources.sgml:
	* gtk/running.sgml:
	* gtk/text_widget.sgml:
	* gtk/tree_widget.sgml:
	* gtk/visual_index.xml:
	* gtk/windows.sgml:
	* gtk/x11.sgml:
	  Use xi:include to speed up doc-build. Remove some unused entities.

svn path=/trunk/; revision=20812