v0.7.0

• Protocol now has Protocol.stage, and Stage now has Stage.step, to provide convenient, 1-indexed access,
  such that protocol.stage[5] of is stage 5 of protocol, not stage 6.
• Protocol now supports setting PRERUN and POSTRUN stages, as a series of SCPI commands. This allows
  the setting of things like idling temperatures and exposure times. It is not easily usable yet, however.
• Experiment.change_protocol_from_now allows convenient changes to a currently-running experiment.
• Normalization has been renamed to Processor. Plotting functions can take sequences of processors to
  process data. These now include:
  • Normalization as before: NormByMeanPerWell, NormByMaxPerWell
  • SubtractMeanPerWell: subtracts the mean of a particular region, applied to each well.
  • SmoothEMWMean: smooths data using Pandas' ExponentialMovingWindow.mean.
  • SmoothWindowMean: smooths data using Pandas' Rolling.mean or Window.mean.
• Some initial implementation changes to allow repeated steps (not stages).
• Fixes bug that prevented loading of some aborted runs.
• Fixes monitor's recording of temperatures.
• Experiment.all_filters uses data if it exists; Experiment.filter_strings as a convenience function alternative.
• SCPICommand parsing improvements.
• Protocol printing improvements.