fixed issues with unit system and uninitialized oauth stuff
Merge pull request #237 from drallgood/fitbit

fixed issues with unit system and uninitialized oauth stuff
Merge commit 'd7789d52cdfe35fc9034a26720438397e0f168da'

* commit 'd7789d52cdfe35fc9034a26720438397e0f168da':
  fixed issues with unit system and uninitialized oauth stuff