per-axis homing seek rates
keep max_travel as positive number, it's less confusing
resolving stashed changes - don't overtravle durning homing
Merge branch '4axis' into homecounts

resolved Conflicts:
	limits.c
Merge branch 'homing-speed' into homecounts - per-axis homing speeds

Conflicts:
	limits.c
	report.c
	settings.c
	settings.h
Attempt to do reporting of position error at homing.
don't reset counter on index
Merge branch '4axis' of https://github.com/keyme/grbl into counter-testing
Merge remote-tracking branch 'origin/counter-testing' into homecounts
fixes for reporting homing counts
Separate line numbers for limit pos and home pos.
Merge pull request #5 from keyme/homecounts

Improve support for encoders and home repeatability testing.