[master] increase the BIND 10 version to today's date

configure.ac

@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.59])
-AC_INIT(bind10-devel, 20120316, bind10-dev@isc.org)
+AC_INIT(bind10-devel, 20120405, bind10-dev@isc.org)
 AC_CONFIG_SRCDIR(README)
 AM_INIT_AUTOMAKE
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])dnl be backward compatible