Corrected plots/graphing axes. Units now derived from ReadingType/uom and Cost derived from ReadingType/currency as opossed to prior "hard-code'.
Merge branch 'master' of https://github.com/energyos/OpenESPI
Corrected plots/graphing axes.
Merge pull request #30 from RonPasquarelli/master

Corrected plots/graphing axes.