Commenting configurations.compile.exclude module 'org.eclipse.paho.cl…

[ferreraa]

…ient.mqttv3' -- It was leading to class not found errors

Hi, I cloned the repository and tried to execute the example. The BUILD was failing because of class not found errors. I figured out that the compilation of the module org.eclipse.paho.client.mqttv3 was excluded. Commenting this line fixed the issue.

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