- Fixed dwell (G4)

 - Fixed dwell (G4)
 - Always show limit switch indicators regardless of motor enable
 - Fixed feed rate display
 - Added current GCode unit display
 - Fixed homed axis zeroing
 - Fixed probe pin input
 - Added reload button to video tab
 - Don't open error dialog on repeat messages
 - Handle large GCode files in browser
 - Added max lookahead limit to planner
 - Fixed GCode stopping/pausing where ramp down needs more than is in the queue
 - Added breakout box diagram to indicators
 - Initialize axes offsets to zero on startup
 - Fixed conflict between x state variable and x axis variable
 - Don't show ipv6 addresses on LCD.  They don't fit.