Modifier build_and_upload script to account for new SPECIFIC flag for Rep2 and Rep2X
Minor style fixes in build_and_upload script
Initial changes for single filament loading during Rep2X script
Re-add comment
Corrections on French translation messages
Initial heat hold fix
Merge branch 'heat_hold_fix' into 7.5

Conflicts:
	firmware/current_version.txt
clear user_input_timeout everytime a heat_hold or user_input timeout elapses
MW-1099, Made ERROR_BOT_TYPE more abiguous
MW-1173, Fix for firmware 'unattaching' from build when bot type error occurs
updating current_version.txt
Add 7.5.1 dist remove 7.4.1 dist
Add 7.5.1 dist remove 7.4.1 dist
Merge branch 'master' of github.com:makerbot/MightyBoardFirmware
Fix message in French
Fix for heat hold timeout, interrupting filament loading post cancelled build, as well as during any other onboard process
updated current_version and 7.5.2 dist
Another change to have heat hold behave correctly in all scenarios
Re-adding code that shouldn't have been removed, and new hex files
Updating Rep1(Dual) startup script to make sense with new dual startup procedure, 7.5.4 dist