- Fixed problem with selecting newly uploaded file.

 - Fixed problem with selecting newly uploaded file.
 - More thorough shutdown of stepper driver in estop.
 - Fixed spindle type specific options.
 - No more Unexpected AVR firmware reboot errors on estop clear.
 - Downgraded Machine alarmed - Command not processed errors to warnings.
 - Suppress unnecessary axis homing warnings.
 - More details for axis homing errors.a
 - Support GCode messages e.g. (MSG, Hello World!)
 - Support programmed pauses.  i.e. M0