Release 2016.07

• Verification of images with public key. Images are verified and
  building of the swu image is supported in meta-swupdate, letting easier
  to build signed images.
• suricatta mode: this is the first step to go toward a full deployment
  system. It consists of a connector to work with the hawkbit server
  (https://sp.apps.bosch-iot-cloud.com/documentation/index.html).