- fixed a bug in Bootstrap script: simply searching for the last tagged

   ChangeSet was not sufficient to get the full ChangeLog between two
   released versions (when using "--changelog=last") as merging between 
   trees also merges the BK tags. Now we explicitely search for the last
   tagged ChangeSet that matches our major+minor version number, which 
   should match the last ChangeSet used for the previous release.


Build-tools/Bootstrap:
   - fixed a bug: simply searching for the last tagged ChangeSet was not
     sufficient to get the full ChangeLog between two released versions
     (when using "--changelog=last") as merging between trees also merges
     the BK tags. Now we explicitely search for the last tagged ChangeSet
     that matches our major+minor version number, which should match the
     last ChangeSet used for the previous release.

Build-tools/Bootstrap

@@ -43,6 +43,7 @@ $opt_test= undef;
 $opt_skip_check= undef;
 $opt_skip_manual= undef;
 $version= "unknown";
+$major=$minor=$release=0;
 
 GetOptions(
 	"build-command|b=s",
@@ -149,6 +150,7 @@ if (!$opt_dry_run)
 	{
 		m/^AM_INIT_AUTOMAKE\(mysql, ([1-9]\.[0-9]{1,2}\.[0-9]{1,2}.*)\)/;
     $version= $1;
+		($major, $minor, $release) = split(/\./,$version);
 	}
 	&logger("Found version string: $version");
 
@@ -218,7 +220,7 @@ if (defined $opt_changelog)
 	{
 		if (!$opt_revision)
 		{
-			$revision= `bk changes -t -d':REV:' -n $REPO | head -1`;
+			$revision= `bk changes -t -d':REV:::TAG:' -n $REPO | grep mysql-$major-$minor | head -1 | cut -f1 -d ":"`;
 		}
 		else
 		{