Update to distinguish from release
close #48: port interrupts broken in 20130325
wolverine: fake button

The RGZ48C carrier as delivered has no button populated, and in fact is
missing the resistors and capacitors necessary to make the unpopulated
crystal/button/led connectors useful, but if you're desperate you can short
pads to make something like a button.
applpm: add Wolverine measurements
dma: fix interrupt declaration
Makefile.common: support inhibiting rule definitions

BSP430 is intended to provide a board support package (hence BSP) capability
not only for standalone programs but for other infrastructure systems like
FreeRTOS and Contiki.  To allow BSP430 configuration to integrate with those
systems we need a way to allow their existing build rules to apply, while
still setting enough variables that those rules know what files need to be
built.