Kevin O'Connor c63754fc32 gcode: Limit build_handlers() method to just building available commands ...

The set_printer_ready() can be called from a background thread on a
shutdown event, so don't try to lookup the printer components in that
case.  Simplify build_handlers() so that it no longer tests for
components being available - test for component availability in the
command handlers.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

2017-04-26 10:31:58 -04:00

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