Merge pull request #3 from joekane3/scottish_wf

Reporting of Calibration Slopes + Offsets
Data count for calibration

A data count if given for calibration bins.
Merge pull request #4 from joekane3/calibration_filters

Calibration filters
Multi point shear

work started on multi point shear.
shear changes

changes to shear calculation and validation
testing York method

Updated York moving average window to match old software's values.
Apply calibration filters only to calibration

dataFrame was passed to calibration calculation, which is then filtered
and date exclusions applied. These then carry through to the PP period
(as only a pointer to the dataframe object is passed, rather than the
data itself). To fix this dataFrame is copied at start of calibration
period and reset at the end.
superseded shear calculation

calculation now generic for a number of heights. Testing showed that old
method is equal to new method to ~14dp if input windspeeds are to 2dp.
append calibration data for reporting only if

append calibration data for reporting only if calibration has been
calculated, rather than specified.
Merge pull request #5 from joekane3/yorkMethod

York method