Merge pull request #798 from Kijewski/usemodule-includes

Makefile.include

drivers/Makefile.include

examples/ccn-lite-client/Makefile

examples/ccn-lite-relay/Makefile

examples/default/Makefile

examples/rpl_udp/Makefile

sys/Makefile

sys/Makefile.include

sys/crypto/3des/Makefile

sys/crypto/aes/Makefile

sys/crypto/rc5/Makefile

sys/crypto/sha256/Makefile

sys/crypto/skipjack/Makefile

sys/crypto/twofish/Makefile

sys/net/crosslayer/net_help/Makefile

sys/net/link_layer/protocol-multiplex/Makefile

sys/posix/pnet/Makefile

sys/posix/pthread/Makefile

sys/shell/commands/Makefile

tests/test_net_if/Makefile