Added named parameters _probe_state and _toolsetter_state. Both return -1 if state is not available.
These may return incorrect values initially so use with care.
Some low-level ioport improvements, added definition for virtual pins/ports.
Deprecated direct access to number of the different ioport ports in hal.port struct, use ioports_unclaimed() instead.
Added code guards in order to free some memory for STM32F103 variants with 128K flash.
Changed Stop (0x19) real-time command behaviour, active tool offset and coordinate system will now be kept. Ref. issue #610.
Fixed incorrect comment string passed to passed to grbl.on_gcode_comment event.
Added generic redirector for temporarily changing input stream to read from a file. Supports nesting.
Terje Io