merged in zeroflow's fixes and my related changes: - fixed main emitters coming on while changing aux LED mode - made strobe group mode selection more configurable at compile time - refactored eeprom indexes in the same manner as strobe indexes, for cleaner and more robust code - added -fshort-enums to compile options for smaller ROM size - made interrupt_nice_delays() automatic every time the user completes a button press sequence, so all delays collapse until the next trip through main()... this reduces ROM size and simplifies code and eliminates risk of not responding right away