Add the trash folder patch.

This is based on the trash folder patch by Cedric Duval.
Modifications to the original patch are:

* Use a flag called M_PURGE instead of M_APPENDED.  The same flag is
  then used in the following "purge" patch instead of adding a
  different flag.

* Removed the counter in context.  The existing context->deleted
  is all that's needed.

* Removed the "auto unset M_PURGE" when M_DELETED is unset inside
  _mutt_set_flag(), although this is convenient, it easily leads to
  header->purge not being reset in a few situations.

* Reset purge flag along with the deleted flag if $delete is answered
  no.

* Set M_PURGE on an edited message. (edit_one_message())

* Preserve purge flag in mutt_reopen_mailbox()

* Turn off OPTCONFIRMAPPEND when saving to the trash, rather than
  hardcoding it off in mutt_save_confirm().  That way, normal save to the
  folder will respect the option.

1 files changed, 1 insertions, 0 deletions

diff --git a/editmsg.c b/editmsg.c
index 57d8b1ca..356810a0 100644
--- a/editmsg.c
+++ b/editmsg.c
@@ -200,6 +200,7 @@ static int edit_one_message (CONTEXT *ctx, HEADER *cur)
   if (rc == 0)
   {
     mutt_set_flag (Context, cur, MUTT_DELETE, 1);
+    mutt_set_flag (Context, cur, MUTT_PURGE, 1);
     mutt_set_flag (Context, cur, MUTT_READ, 1);
 
     if (option (OPTDELETEUNTAG))