Prepare release 0.4.1

Bump version to 0.4.1.

Libtool versioning has already been bumped:
- libaddrxlat in commit 450de7b
- libkdumpfile in commit 615d0e8

Signed-off-by: Petr Tesarik <ptesarik@suse.com>

configure.ac

@@ -20,7 +20,7 @@ dnl  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 dnl Package release versioning
 m4_define([pkg_major_version], [0])
 m4_define([pkg_minor_version], [4])
-m4_define([pkg_micro_version], [0])
+m4_define([pkg_micro_version], [1])
 m4_define([pkg_version],
           [pkg_major_version.pkg_minor_version.pkg_micro_version])