[SQUASH ME] netapi: Add option type to get registered threads
[SQUASH ME] basic_mac: adapt for registry getter
[SQUASH ME] netapi: Update license header
[SQUASH ME] basic_mac: Update license header
[SQUASH ME] unittests: tests-basic_mac: Update license header
[SQUASH ME] tests: nativenet_netapi: Update license header
[SQUASH ME] tests: netdev: Add license header
Merge branch 'net-dev-base' into network-layer-interface
sixlowpan: devide into ipv6 and sixlowpan module but leave mutualy dependend
[SQUASH ME] start working my way up