Add enabling of limit switches which will freeze operations if any limit switch is triggered while printing
fix typo
fix pause button to be able to unpause system regardless of what caused it to pause.
fix wait for temperature so multiple waits don't lock system indefinitely
add some TODO notes
don; tlet pauser counter go negative
fixed use of pause in other modules
Merge pull request #457 from wolfmanjm/add/limit-switch-stop

Add/limit switch stop