Define interrupt limits better, make it warn upon exceeding them
Try rounding up the deceleration with ceil() like is done for acceleration - it's more conservative
Revert "Try rounding up the deceleration with ceil() like is done for acceleration - it's more conservative"

This reverts commit 08be36a9d0239d81c32ae2045e88388172042a91.
Additional pin change - move Y stop away from troublesome pin shared with SD Card
Get Advance working fairly well. Fixed numerous bugs, changed rule to not be square of speed, but linear.
Follow up to Advance - major rework, try to diagnose problems

Add M305 A# to set K for Advance (but Advance is not ready to use yet)
Set Z Motor to not auto-disable - helps keep Z from drifting off
New Thermistor tables to support EPCOS and MuRata for head and bed respectively
Initial Implementation
Lots of small changes
Implement Pause pin support with Resume, Kill pin active.
Refine filament switch messaging and state handling - works wellq
Increase acceleration limits, E Jerk
rename macro define, enable it
eliminate some float usage, streamline planning calcs
planner error tracing
disable tracing (advance may be broken)
tweaks - may be a bit better
freeze advance rates
other part of freeze rates