Revision history for Perl extension RPi::WiringPi::Core.

0.03    2016-08-10
        - added repo info to Makefile.PL
        - added get_alt(), maps to C getAlt(). This returns the current mode
          of a pin. Why it's not called getMode() is beyond me ;)

0.02    2016-08-10
        - added notices to POD
        - added POD for pwm_write()

0.01    2016-08-10
        - separated out from RPi::WiringPi
        - most core and system functions implemented