Change page title
Add diff count for mode msids even if histogram plotted
Convert pointing/roll checks to arcsecs
Tweak titles/labels/plotting
Filter attitude checks for non-Kalman and momentum unloads
Tweak handling of discrete-state/mode msids

Update validation violation to use a limit that is scaled by the
number of toggles/changes for these MSIDS.  Add appropriate validation
violation if a limit is exceeded (this doesn't fit in the quantile
checking in make_validation_viols, so is just done inline).