Add "restart gracefully" to the AMI blacklist of CLI commands.

"module unload" was already identified as a command that can not be used 
from the AMI.  "restart gracefully" effectively unloads all modules, and will 
run in to the same problems.

(closes issue #13894)
Reported by: kernelsensei


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@164806 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -138,6 +138,7 @@ static struct {
 } command_blacklist[] = {
 	{{ "module", "load", NULL }},
 	{{ "module", "unload", NULL }},
+	{{ "restart", "gracefully", NULL }},
 };
 
 struct mansession {