Bump version to 0.1.5.

configure.ac

@@ -3,7 +3,7 @@ dnl Basic autotools settings.
 dnl ######################################################################
 AC_PREREQ([2.64])
 dnl Update the corresponding entry in doc/Doxyfile when changing this
-AC_INIT([yaxt],[0.1.4],[hanke@dkrz.de])
+AC_INIT([yaxt],[0.1.5],[hanke@dkrz.de])
 AC_CONFIG_SRCDIR([src/xt_idxlist.c])
 AC_CONFIG_AUX_DIR([config])
 AC_CONFIG_MACRO_DIR([m4])