Increment version for 3.12-alpha release

installer/data/mysql/updatedatabase.pl

@@ -6526,6 +6526,11 @@ if ( CheckVersion($DBversion) ) {
     SetVersion($DBversion);
 }
 
+$DBversion = '3.11.00.100';
+if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
+    print "Upgrade to $DBversion done (3.12-alpha release)\n";
+    SetVersion ($DBversion);
+}
 
 =head1 FUNCTIONS
 

kohaversion.pl

@@ -16,7 +16,7 @@ the kohaversion is divided in 4 parts :
 use strict;
 
 sub kohaversion {
-    our $VERSION = '3.11.00.030';
+    our $VERSION = '3.11.00.100';
     # version needs to be set this way
     # so that it can be picked up by Makefile.PL
     # during install