Update library version informatio to reflect new public interfaces

LIBRARY_INTERFACE

@@ -38,3 +38,9 @@ https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
   the naming conventions. The old interface are still available
 
   The states of release 2016.05.001 and 2016.05.002 define this interface
+
+- 6
+  Compatible API change w.r.t. previous version: Interfaces have been made public.
+
+  The state of release 2016.05.003 defines this interface
+

configure.ac

@@ -34,7 +34,7 @@ AM_SILENT_RULES([yes])
 #    by the current interface, as they are ABI compatible (e.g. only new symbols
 #    were added by the new interface)
 #
-AC_SUBST([ELPA_SO_VERSION], [5:1:1])
+AC_SUBST([ELPA_SO_VERSION], [6:0:2])
 #