bump release; add distcheck capability via xmllint

Makefile.am

 ## Process this file with automake to produce Makefile.in
 
-dist_pkgdata_DATA = serviceproviders.xml serviceproviders.dtd
+SP_XML_DB = serviceproviders.xml
+
+dist_pkgdata_DATA = $(SP_XML_DB) serviceproviders.2.dtd
 
 EXTRA_DIST = mobile-broadband-provider-info.pc.in
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = mobile-broadband-provider-info.pc
+
+check-local:
+	xmllint --valid $(top_srcdir)/$(SP_XML_DB) 2>&1 > /dev/null || exit 1;
+

configure.ac

 AC_PREREQ(2.52)
 
-AC_INIT(mobile-broadband-provider-info, 20090309, antti@kaijanmaki.net, mobile-broadband-provider-info)
-AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AC_INIT(mobile-broadband-provider-info, 20090602, antti@kaijanmaki.net, mobile-broadband-provider-info)
+AM_INIT_AUTOMAKE([-Wall -Werror foreign no-dist-gzip dist-bzip2])
 AM_MAINTAINER_MODE
 
 AC_CONFIG_FILES([