net: Initial import of a global packet buffer
drivers: Make general IEEE 802.15.4 driver part of netdev
nativenet: Apply coding conventions
nativenet: Supply net_dev_t support for nativenet
Merge branch 'netdev-test-dummy' into HEAD
Merge branch 'netdev-nativenet' into HEAD
sys: net: Initial import of a general interface to a network protocol
sys: net: Initial import of a basic MAC protocol layer
sys: transceiver: Provide an adapter to netapi module

Since netapi is aimed to replace tranceiver one day, but porting
efforts usally take a while, this commit aims to provide access via
transceiver as we are used to for radio/network drivers that already implement
netapi (e. g. uart_net in #1454).
netapi,basic_mac: Add capability to fire events with netdev_dummy
unittests: provide unittests for basic_mac
tests: transceiver: netapi: nativenet: Provide transceiver adapter tests
msp-430: fix linking for msp-430 boards

* see http://permalink.gmane.org/gmane.os.contiki.devel/13870
Merge branch 'packetbuf2' into HEAD
Merge branch 'netdev-ieee802154' into HEAD

Conflicts:
	Makefile.dep
	drivers/include/netdev/default.h
sixlowpan: devide into ipv6 and sixlowpan module but leave mutualy dependend
[WIP] start working my way up