drivers/at86rf231: change to PLL_ON to change address
drivers/at86rf231: print raw packet when DEBUG_ENABLED
drivers/at86rf231: frame_type has to be set by upper layers
examples/default: print 16bit addresses
shell/transceiver: set 16 bit addresses and frame type
Merge pull request #1934 from thomaseichinger/at86rf231_robustnes

drivers/at86rf231: improve deployment by default example
iot-lab_M3: set baud rate to 500 kbaud

The IoT-Lab testbed requires a baud rate of 500 kbaud to use UART.
Hence, this commit sets the default baud rate to this value and adapt
the `make term` target accordingly.
iot-lab_M3: don't overwrite a custom baud rate
iot-lab_M3: complement stdio documentation
Merge pull request #1940 from OlegHahm/iotlab_baudrate

iot-lab_M3: set baud rate to 500 kbaud
ieee802154: change frame type definition to enum
ieee802154: make use of frame_type enum all over
Merge pull request #1941 from OlegHahm/ieee802154_use_enums

Ieee802154: use enums for frame type
board/iot-lab_M3: added definitions for L3G4200D
drivers: added L3G4200D gyroscope driver
tests: added test for L3G4200 device driver