Nonworking checkin
Fixed doctest issue, switching timing to Timer() class rather than mixin.
minor cleanup of utils
One more cleanup to utils
import kB from constants.py
Added docstring to Timing
Slight refactor of timer class
Disable timestamp-mode printing
Hopefully last cleanup to Timer
Merge pull request #100 from choderalab/timing

[WIP] Figuring out a way to clean up timing