Started work on capture job running on the Pi side.
Capture jobs are running both server- and pi-side.

I want to be able to come back here in case I break anything while improving it.
Adjusting interface to better support capture jobs.
Adjusting style sheet in support of new capturing interface elements.
Looking for ways to improve timing.  The timing inside capture jobs is off.
Timing is better, but still not great.
Added startup_delay to allow voltage changes to motor to take effect.
Removed some overhead by only rendering placeholder Xs instead of inline images.
Added a linked bullet to Images and made some CaptureJob fields noneditable.
More improvements to timing of captured images.
Renaming templates to reflect change to Capture Job Templates from CJs.
Split CaptureJob into CaptureJobTemplate and CaptureJobRecord.
Added some more general telemetry handlers.

These handlers support more general messaging between the main
FF server and the raspi.
Better default for species.
Removed some commented-out cruft.
Fixed bug preventing cal capture and improved image filenames.
Tweaks to experiment interface.
Species views and templates are up except for the sample_image.
PEP8 corrections.
Ignored migrations until after we start production use.