configure.ac (BUILD_EPUB): Adjust for epub3.

configure.ac (BUILD_EPUB): Adjust for epub3.

2012-01-17  Benjamin Kosnik  <bkoz@redhat.com>

	* configure.ac (BUILD_EPUB): Adjust for epub3.
	* configure: Regenerate.
	* Makefile.in: Same.
	* doc/Makefile.am (stamp-epub-docbook): Update for epub3.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Same.
	* libsupc++/Makefile.in: Same.
	* po/Makefile.in: Same.
	* python/Makefile.in: Same.
	* src/Makefile.in: Same.
	* testsuite/Makefile.in: Same.

	* doc/xml/manual/documentation_hacking.xml: Update.

From-SVN: r183263