[dovecot/core] fd1650: fts plugin: Added fts_autoindex_exclude settings.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: fd16501d913e6e61a5cb9ae8f05b1fa7c19a1fae
      https://github.com/dovecot/core/commit/fd16501d913e6e61a5cb9ae8f05b1fa7c19a1fae
  Author: Baofeng Wang <baofeng.wang at dovecot.fi>
  Date:   2016-06-27 (Mon, 27 Jun 2016)

  Changed paths:
    M src/plugins/fts/fts-storage.c

  Log Message:
  -----------
  fts plugin: Added fts_autoindex_exclude settings.

fts_autoindex_exclude setting specifies special-use flag or mailbox name to
be excluded.

 - If a name starts with '\', it's treated as a case-insensitive special-use
flag.

 - Multiple names can be specified with serial numbers, for example:

  plugin {
    fts_autoindex_exclude = \Junk
    fts_autoindex_exclude2 = \Trash
    fts_autoindex_exclude3 = DUMPSTER
    fts_autoindex_exclude4 = New folder
  }