update gobject-introspection-1.0 version dependency
update gobject-introspection-1.0 version dependency

	* configure.ac: update gobject-introspection-1.0 dependency to 0.6.0
	for g_irepository_require() API change

svn path=/trunk/; revision=92

djdeath/gjs,djdeath/gjs,mtwebster/cjs,pixunil/cjs,pixunil/cjs,mtwebster/cjs,magcius/gjs,endlessm/gjs,djdeath/gjs,endlessm/gjs,pixunil/cjs,mtwebster/cjs,endlessm/gjs,pixunil/cjs,joeshaw/gjs,endlessm/gjs,joeshaw/gjs,magcius/gjs,joeshaw/gjs,endlessm/gjs,magcius/gjs,joeshaw/gjs,pixunil/cjs,joeshaw/gjs,djdeath/gjs,mtwebster/cjs,magcius/gjs,magcius/gjs,mtwebster/cjs,djdeath/gjs