to produce a nicer 'readall' output too.
It also understands new pins 53,54,55 and 56 in wiringPiSetupPhys()
mode to represent the pins on the P5 connector on the Rev 2 Pi's
Changes to pinMode() to allow new modes SOFT_PWM and SOFT_TONE.
on non Raspbian systems (and even on some Raspbian systems it would appear ):
fixed a timing issue on softTone
fixed some issues in wiringPisetup introduced when optimising the mmap calls.