Merge branch 'master' of git://github.com/apullin/imageproc-lib
Remove unnecessary dependency on led.h from radio stack
Remove trailing whitespace
Merge branch 'master' into dfmem+dma
Merge branch 'master' into radio+dma
Merge pull request #26 from biomimetics/radio+dma

DMA-enabled radio stack to supercede current one
Merge pull request #27 from biomimetics/dfmem+dma

DMA-enabled dfmem to supercede current one
Merge branch 'master' into master_apullin

Conflicts:
	at86rf231_driver.c
	radio.c
Remove remnants of old radio stack to prevent confusion
Merge branch 'master' into master_apullin

Conflicts:
	at86rf.c
Document trxGetLastACKd() in header file
Minor cleanup of dfmem
Revert some changes used for debugging payload.c
Minor cleanup of payload module
Minor cleanup of dfmem module
Merge branch 'master' of git://github.com/apullin/imageproc-lib into master_apullin

Conflicts:
	radio.c
Merge branch 'master' of git://github.com/apullin/imageproc-lib into master_apullin
Slight restructure of radioSendData; now blocks until packet is enqueued

In the previous scenario, if a packet couldn't get enqueued it was
dropped. This might be desirable to prevent blocking of execution, but
would potentially result in inadvertent data loss.
Cleanup of spi_controller
Reverting the delete of at86rf231.h; required by at86rf231_driver.c