Merge pull request #4713 from authmillenon/pkg/port/emb6

Makefile.dep

Makefile.pseudomodules

pkg/emb6/Makefile

pkg/emb6/Makefile.include

pkg/emb6/contrib/Makefile

pkg/emb6/contrib/board_conf.c

pkg/emb6/contrib/conn/udp/Makefile

pkg/emb6/contrib/conn/udp/emb6_conn_udp.c

pkg/emb6/contrib/netdev2/Makefile

pkg/emb6/contrib/netdev2/emb6_netdev2.c

pkg/emb6/contrib/target.c

pkg/emb6/doc.txt

pkg/emb6/include/board_conf.h

pkg/emb6/include/emb6/conn/udp.h

pkg/emb6/include/emb6/netdev2.h

pkg/emb6/patches/0001-Add-RIOT-Makefiles.patch

...6/patches/0002-Rename-colliding-files-and-functions.patch

pkg/emb6/patches/0003-Fix-warnings.patch

...hes/0004-Provide-event-type-for-RIOT-s-conn_.-_send.patch

sys/include/net/conn/udp.h