adding logs to stdout

simulator/simulate

@@ -43,15 +43,20 @@ parodus --hw-model=aker-testing \
         --webpa-backoff-max=2 \
         --webpa-interface-used=eth0 \
         --webpa-url=$URL \
-        --force-ipv4 > /dev/null &
+        --force-ipv4 &
+P1=$!
 
 aker -p tcp://127.0.0.1:$parodus_port \
      -c tcp://127.0.0.1:$aker_port \
      -w echo \
      -d /tmp/aker-data.msgpack \
      -f /tmp/aker-data.msgpack.md5 \
-     -m 128 > /dev/null &
+     -m 128 &
+P2=$!
 
 mock_tr181 -p $parodus_port \
            -c $mocktr181_port \
-           -d /etc/mock_tr181.json > /dev/null
+           -d /etc/mock_tr181.json &
+P3=$!
+
+wait $P1 $P2 $P3