Add the ChangeSet id to Subject: in all emails.

BitKeeper/etc/ignore:
  Added autom4te-2.53.cache/output.0 autom4te-2.53.cache/requests autom4te-2.53.cache/traces.0 bdb/dist/autom4te-2.53.cache/output.0 bdb/dist/autom4te-2.53.cache/requests bdb/dist/autom4te-2.53.cache/traces.0 bkpull.log build.log innobase/autom4te-2.53.cache/output.0 innobase/autom4te-2.53.cache/requests innobase/autom4te-2.53.cache/traces.0 pull.log to the ignore list

.bzrignore

@@ -509,3 +509,15 @@ vio/test-ssl
 vio/test-sslclient
 vio/test-sslserver
 vio/viotest-ssl
+autom4te-2.53.cache/output.0
+autom4te-2.53.cache/requests
+autom4te-2.53.cache/traces.0
+bdb/dist/autom4te-2.53.cache/output.0
+bdb/dist/autom4te-2.53.cache/requests
+bdb/dist/autom4te-2.53.cache/traces.0
+bkpull.log
+build.log
+innobase/autom4te-2.53.cache/output.0
+innobase/autom4te-2.53.cache/requests
+innobase/autom4te-2.53.cache/traces.0
+pull.log

BitKeeper/triggers/post-commit

@@ -19,6 +19,8 @@ BK_STATUS=$BK_STATUS$BK_COMMIT
 if [ "$BK_STATUS" = OK ]
 then 
 
+CHANGESET=`bk changes -r+ | sed -n 's/^ChangeSet@\([^,][^,]*\),.*/\1/p'`
+
 #++
 # dev-public@
 #--
@@ -28,7 +30,7 @@ then
 List-ID: <bk.mysql-4.0>
 From: $FROM
 To: $TO
-Subject: bk commit - 4.0 tree
+Subject: bk commit - 4.0 tree ($CHANGESET)
 
 EOF
   bk changes -v -r+
@@ -44,7 +46,7 @@ EOF
 List-ID: <bk.mysql-4.0>
 From: $FROM
 To: $INTERNALS
-Subject: bk commit into 4.0 tree
+Subject: bk commit into 4.0 tree ($CHANGESET)
 
 Below is the list of changes that have just been committed into a local
 4.0 repository of $USER. When $USER does a push these changes will
@@ -71,7 +73,7 @@ EOF
 List-ID: <bk.mysql-4.0>
 From: $FROM
 To: $DOCS
-Subject: bk commit - 4.0 tree (Manual)
+Subject: bk commit - 4.0 tree (Manual) ($CHANGESET)
 
 EOF
   bk changes -v -r+