Show the conditioning IM on the SA chart when appropriate.
Add a loading symbol when Choose File is clicked.
Remove some outdated documentation from chart.js.
Add left-right positioning to chart legends.
Show the conditioning IM on the output SA chart.
Make the median function a little more sane.
Add median line and dummy 16th and 8th percentile lines to SA chart.
Removed some more chart cruft.
Fix legend values and remove some more unused chart code.