fixes holdtime playback issue in app_queue

When reporting hold time, the number of seconds should be mod 60.
Otherwise audio playback could be something like "2 minutes 123 seconds"
rather than "2 minutes 3 seconds".

Also, the "minute" sound file is missing, so for the moment until
that file can be created the "minutes" file is used instead.

(closes issue #16168)
Reported by: nickilo
Patches:
      patch-unified-trunk-rev-222176 uploaded by nickilo (license )
Tested by: nickilo, wonderg



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@237920 65c4cc65-6c06-0410-ace0-fbb531ad65f3