latest changes with all raw register access removed#2

Merged

ar0n merged 2 commits intoar0n:rpi-patchesfrom cleverca22:rpi-patches

Oct 31, 2012

+30-45

Commits on Aug 23, 2012

untested changes to switch irq number over to the libgpio function
cleverca22
committed

Commits on Oct 27, 2012

purge all direct gpio access, the code is now purely libgpio based
cleverca22
committed