NAME
SVK::Editor::TxnCleanup - An editor that aborts a txn when it is aborted
SYNOPSIS
my $editor = ...
# stack the txn cleanup editor on
$editor = SVK::Editor::TxnCleanup-> (_editor => [$editor], txn => $txn );
# ... do some stuff ...
$editor->abort_edit;
# $txn->abort gets called.