bump version

raveit65 · raveit65 · commit 74f284c49d6a · 2018-05-31T11:09:16.000+02:00
master should have a higher version than stable branch
diff --git a/configure.ac b/configure.ac
@@ -1,7 +1,7 @@
 AC_PREREQ([2.60])
 
 m4_define([msd_api_version_major],[1])
-m4_define([msd_api_version_minor],[20])
+m4_define([msd_api_version_minor],[21])
 m4_define([msd_api_version_micro],[0])
 m4_define([msd_api_version],
 	[msd_api_version_major.msd_api_version_minor.msd_api_version_micro])
