Fixing DEBUG printf for jennic: When using DEBUG macros, the linker is mixing printf with the default implementation that does not work
Merging the radio implementation in the platform later so removing this copy now
Modifying the example slightly to work with Jennic
Changes to reflect updated drivers/port
Updated radio driver to support polling OR interrupts --##Not working well. Something is wrong
Mostly trivial changes to compile for Jennic. Not really essential