* Yang "min-element" and "max-element" feature supported

* New Clixon Yang RPC: ping. To check if backup is running.
* Fixed support for multiple datanodes in a choice/case statement.

test/test_nacm_default.sh

@@ -102,8 +102,10 @@ EOF
     start_restconf -f $cfg -- -a
 
     new "waiting"
-    sleep $RCWAIT
+    wait_backend
+    wait_restconf
 
+    
     #----------- First get
     case "$ret1" in
 	0) ret='{"nacm-example:x": 42}
@@ -115,6 +117,7 @@ EOF
 
'
 	;;
     esac
+
     new "get startup 42"
     expecteq "$(curl -u guest:bar -sS -X GET http://localhost/restconf/data/nacm-example:x)" 0 "$ret"
 
@@ -190,5 +193,4 @@ testrun true permit deny permit 0 1 3
 new "nacm enabled, exec default permit, write permit (expect fail)"
 testrun true deny permit permit 2 0 2
 
-
 rm -rf $dir