Merged revisions 303676 via svnmerge from

Merged revisions 303676 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r303676 | jpeeler | 2011-01-25 10:58:29 -0600 (Tue, 25 Jan 2011) | 20 lines

  Fix voicemail sequencing for file based storage.

  A previous change was made to account for when the number of voicemail messages
  exceeds the max limit to be handled properly, but it caused gaps in the messages
  to not be properly handled. This has now been resolved.

  In later non 1.4 branches, it appears that resequencing wasn't even occurring
  due from what appears and accidental code removal.

  (closes issue #18498)
  Reported by: JJCinAZ
  Patches:
        bug18498v2.patch uploaded by jpeeler (license 325)

  (closes issue #18486)
  Reported by: bluefox
  Patches:
        bug18486.patch uploaded by jpeeler (license 325)
........

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@303677 65c4cc65-6c06-0410-ace0-fbb531ad65f3