Add makerbot 2, mighty 2 config#1166

thinkyhead merged 6 commits into

MarlinFirmware:import-2.1.xMarlinFirmware/Configurations:import-2.1.xfrom

chepo92:add-Mightyboard2_revGHchepo92/Configurations:add-Mightyboard2_revGHCopy head branch name to clipboard