mqtt stuff added

node_modules/mqtt/doc/help.txt

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+MQTT.js command line interface, available commands are:
+
+  * publish     publish a message to the broker
+  * subscribe   subscribe for updates from the broker
+  * version     the current MQTT.js version
+  * help        help about commands
+
+Launch 'mqtt help [command]' to know more about the commands.

node_modules/mqtt/doc/publish.txt

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+Usage: mqtt publish [opts] topic [message]
+
+Available options:
+
+  -h/--hostname HOST    the broker host
+  -p/--port PORT        the broker port
+  -i/--client-id ID     the client id
+  -q/--qos 0/1/2        the QoS of the message
+  -t/--topic TOPIC      the message topic
+  -m/--message MSG      the message body
+  -r/--retain           send a retained message
+  -s/--stdin            read the message body from stdin
+  -M/--multiline        read lines from stdin as multiple messages 
+  -u/--username USER    the username
+  -P/--password PASS    the password
+  -C/--protocol PROTO   the protocol to use, 'mqtt',
+                        'mqtts', 'ws' or 'wss'
+  --key PATH            path to the key file
+  --cert PATH           path to the cert file
+  --ca PATH             path to the ca certificate
+  --insecure            do not verify the server certificate
+  --will-topic TOPIC    the will topic
+  --will-payload BODY   the will message
+  --will-qos 0/1/2      the will qos
+  --will-retain         send a will retained message 
+  -H/--help             show this

node_modules/mqtt/doc/subscribe.txt

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+Usage: mqtt subscribe [opts] [topic]
+
+Available options:
+
+  -h/--hostname HOST    the broker host
+  -p/--port PORT        the broker port
+  -i/--client-id ID     the client id
+  -q/--qos 0/1/2        the QoS of the message
+  --no-clean            do not discard any pending message for
+                        the given id
+  -t/--topic TOPIC      the message topic
+  -k/--keepalive SEC    send a ping every SEC seconds
+  -u/--username USER    the username
+  -P/--password PASS    the password
+  -l/--protocol PROTO   the protocol to use, 'mqtt',
+                        'mqtts', 'ws' or 'wss'
+  --key PATH            path to the key file
+  --cert PATH           path to the cert file
+  --ca PATH             path to the ca certificate
+  --insecure            do not verify the server certificate
+  --will-topic TOPIC    the will topic
+  --will-message BODY   the will message
+  --will-qos 0/1/2      the will qos
+  --will-retain         send a will retained message
+  -v/--verbose          print the topic before the message
+  -H/--help             show this