Notify deletion events from the update-move editor.

* subversion/libsvn_wc/wc_db_update_move.c
  (tc_editor_delete): Notify deletions. Take care not to notify twice in case
   the deleted node is tree-conflicted.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1440368 13f79535-47bb-0310-9956-ffa450edef68