Merge branch 'dev' of https://github.com/grbl/grbl into dev

Conflicts:
	limits.c

README.md

@@ -24,7 +24,7 @@ Grbl includes full acceleration management with look ahead. That means the contr
   - Soft limits: Checks if any motion command exceeds workspace limits. Alarms out when found. Another safety feature, but, unlike hard limits, position does not get lost, as it forces a feed hold before erroring out.
   - Pin mapping: In an effort for Grbl to be compatible with other AVR architectures, such as the 1280 or 2560, a new pin_map.h configuration file has been created to allow Grbl to be compiled for them. This is currently user supported, so your mileage may vary. If you run across a bug, please let us know or better send us a fix! Thanks in advance!
   - New Grbl SIMULATOR by @jgeisler: A completely independent wrapper of the Grbl main source code that may be compiled as an executable on a computer. No Arduino required. Simply simulates the responses of Grbl as if it was on an Arduino. May be used for many things: checking out how Grbl works, pre-process moves for GUI graphics, debugging of new features, etc. Much left to do, but potentially very powerful, as the dummy AVR variables can be written to output anything you need. 
-  - Homing routine updated: Sets workspace volume in all negative space regardless of limit switch position. Common on pro CNCs. Also reduces soft limits CPU overhead.
+  - Homing routine updated: Sets workspace volume in all negative space regardless of limit switch position. Common on pro CNCs. Now tied directly into the main planner and stepper modules to reduce flash space and allow maximum speeds during seeking.
   - Feedrate overrides: In the works, but planner has begun to be re-factored for this feature.
   - Jogging controls: Methodology needs to be to figured out first. Could be dropped due to flash space concerns. Last item on the agenda.