Style fixes
NETSTACK_LLSEC: New layer in between NETSTACK_MAC and NETSTACK_NETWORK for implementing link layer security
NETSTACK_LLSEC: Doing hdrreduce in NETSTACK_LLSEC, so that the NETSTACK_LLSEC driver can
see the entire frame
NETSTACK_LLSEC: Configuration option for defining a constant LoWPAN-wide IEEE
802.15.4 security level
sky-main: Calling NETSTACK_LLSEC.bootstrap from contiki-sky-main.c
sky-main: DEBUG on/off switch
framer-802154: Support for creating and parsing frames with security
headers
framer-802154: Support for setting and accessing the frame type
attribute
framer-802154: Sequence number fixes
CC2420: Doing CRC in hardware all the time
CC2420: Macros as functions for saving program memory
CC2420: CC2420_WRITE_RAM with parameterizable ordering + resulting
simplifications
CC2420: The crystal oscillator only needs to stabilize on startup
CC2420: Securing outgoing frames by using the hardware-acceleration
capabilities of the CC2420
CC2420: The variable "pending" was never used
CC2420: Less duplicated code in cc2420_read
CC2420: Removed unused variables
CC2420: Reusing getrxdata instead of getrxbyte.
node-id: Functions for preloading and restoring arbitrary configuration data
node-id: Function for erasing the configuration data