'queue reset stats' erroneously clears wrapuptime configuration.

Resets each member's lastcall to 0 now.

(closes issue #17262)
Reported by: rain
Patches:
      wrapuptime_reset_fix.diff uploaded by rain (license 327)
Tested by: rain


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@261232 65c4cc65-6c06-0410-ace0-fbb531ad65f3