SevSeg v3.2.0

Backwards compatible with version 3.1
Updated to Arduino 1.5 Library Specification
New display function - no longer consumes processor time with delay()
Now supports hexadecimal number printing
The decimal point can now be omitted with a negative decPlaces
Alphanumeric strings can be displayed (inaccurately) with setChars
Removed #define RESISTORS_ON_SEGMENTS. Now a begin() input
Can now blank() the display
Now 'heavier' - uses more PROGMEM and RAM