Merge pull request #3496 from authmillenon/ng_pktbuf/enh/new_default

Makefile.dep

Makefile.pseudomodules

sys/Makefile

sys/auto_init/auto_init.c

sys/include/net/ng_pktbuf.h

sys/net/application_layer/ng_zep/ng_zep.c

sys/net/crosslayer/ng_pktbuf/_pktbuf_dynamic.c

sys/net/crosslayer/ng_pktbuf/_pktbuf_internal.h

sys/net/crosslayer/ng_pktbuf/_pktbuf_static.c

sys/net/crosslayer/ng_pktbuf/ng_pktbuf.c

sys/net/crosslayer/ng_pktbuf_static/Makefile

sys/net/crosslayer/ng_pktbuf_static/ng_pktbuf_static.c

sys/net/network_layer/ng_ipv6/ext/ng_ipv6_ext.c

sys/net/network_layer/ng_ipv6/ng_ipv6.c

sys/net/network_layer/ng_sixlowpan/iphc/ng_sixlowpan_iphc.c

sys/net/network_layer/ng_sixlowpan/ng_sixlowpan.c

sys/net/transport_layer/ng_udp/ng_udp.c

tests/unittests/tests-ipv6_hdr/tests-ipv6_hdr.c

tests/unittests/tests-pktbuf/Makefile.include

tests/unittests/tests-pktbuf/tests-pktbuf.c