Testing release with stepper direction delay code.

Some stepper drivers (e.g. DM542) seem to have problems running without delay after direction changes. This release includes code to add at least 25us after a direction change.

On Linux (currently the only binary package):

• download binary
• make executable
  • right-click > properties > permissions > Allow executing file as program
  • or chmod +x driveboardapp
• double-click

MAKE SURE to click "Flash Firmware" in the burger menu of the UI to load the updated firmware to the controller.

The following describes the issue (but not the solution used here):

• lasersaur discussion
• grbl discussion