Kepler

This bug implements the feature to query a dataturbine server to retrieve all the associated sensors. The following information shall be retrieved for each sensors: (i) sensor id; (ii) logger id to which the sensor is attached; and (iii) site Id to which the sensor belongs. I naming convention can be followed where each sensor is named as: site(x)_logger(y)_sensor(z), where x, y, z are site id, logger id, and sensor id.