Merge pull request #1404 from fabianbrandt/rpl_nonstoring

sys/net/include/etx_beaconing.h

sys/net/include/rpl.h

sys/net/include/rpl/rpl_config.h

sys/net/include/rpl/rpl_dodag.h

sys/net/include/rpl/rpl_nonstoring.h

sys/net/include/rpl/rpl_storing.h

sys/net/include/rpl/rpl_structs.h

sys/net/include/sixlowpan/ip.h

sys/net/include/sixlowpan/types.h

sys/net/network_layer/sixlowpan/border/bordermultiplex.c

sys/net/network_layer/sixlowpan/icmp.c

sys/net/network_layer/sixlowpan/ip.c

sys/net/network_layer/sixlowpan/ip.h

sys/net/routing/Makefile

sys/net/routing/etx_beaconing.c

sys/net/routing/rpl/Makefile

sys/net/routing/rpl/of0.c

sys/net/routing/rpl/of0.h

sys/net/routing/rpl/of_mrhof.c

sys/net/routing/rpl/of_mrhof.h