Fix MusicOnHold in MeetMe so that it always uses the class if it's been defined

There were a few instances of restarting music on hold in meetme that would cause
Asterisk to revert to the default class of music on hold for no adequate reason.

Review: https://reviewboard.asterisk.org/r/1844/
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Merged revisions 361269 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 361270 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@361279 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_meetme.c

@@ -3761,7 +3761,7 @@ static int conf_run(struct ast_channel *chan, struct ast_conference *conf, struc
 								}
 								if (musiconhold && mohtempstopped && confsilence > MEETME_DELAYDETECTENDTALK) {
 									mohtempstopped = 0;
-									ast_moh_start(chan, NULL, NULL);
+									conf_start_moh(chan, optargs[OPT_ARG_MOH_CLASS]);
 								}
 							}
 						} else {
@@ -3783,7 +3783,7 @@ bailoutandtrynormal:
 						}
 						if (musiconhold && mohtempstopped && confsilence > MEETME_DELAYDETECTENDTALK) {
 							mohtempstopped = 0;
-							ast_moh_start(chan, NULL, NULL);
+							conf_start_moh(chan, optargs[OPT_ARG_MOH_CLASS]);
 						}
 					}
 				} else {