Arduino.h imports for compatibility with newer Arduino IDE added to header files.
Added two old sample applications for the LED Cube that use the new libraries.
Added a bunch of untested, unported sketches for the LED Cube that still seem to use the old libraries.
Added a basic test program for the LedCube library, toggling all LEDs on and off only.
Ported check_all to new libraries.
Added old (ie untested) programs for the LED Display.