Merge pull request #68 from mikeemoo/master

big old reformat. much easier to use now
Merge pull request #69 from mikeemoo/master

just passing relativeX Y and  Z through to sensor targets
Merge pull request #70 from mikeemoo/master

renamed to registerCallback
Merge pull request #71 from mikeemoo/master

gauge stuff!
Merge pull request #72 from mikeemoo/master

fixed gauge metadata bug
Merge pull request #73 from mikeemoo/master

Huge refactor
bugfix