Merge pull request #5134 from OlegHahm/netif_default

Makefile.dep

Makefile.pseudomodules

boards/fox/Makefile.dep

boards/iotlab-m3/Makefile.dep

boards/msba2/Makefile.include

boards/mulle/Makefile.dep

boards/native/Makefile.dep

boards/pba-d-01-kw2x/Makefile.dep

boards/samr21-xpro/Makefile.dep

cpu/native/README.md

examples/ccn-lite-relay/Makefile

examples/default/Makefile

examples/gnrc_border_router/Makefile

examples/gnrc_minimal/Makefile

examples/gnrc_networking/Makefile

examples/gnrc_tftp/Makefile

examples/microcoap_server/Makefile

examples/posix_sockets/Makefile

sys/include/net/gnrc.h

tests/conn_ip/Makefile