Merge branch 'develop'

* develop:
  Missing attribute type...
  Fix index.js
  Add comment about cc2531 issues
  Move wip out of the way, add a bit to the readme, bump version
  Lots of fixes, extend out list-devices example
  Small fixes, extend list-devices example
  Add spheramid zigbee device
  Fix example for api changes
  Move everything around, clean up.