Merging code from HIRT #560

Job	Run time
build (gcc, vanilla)	7m 51s
build (gcc, dpdk)	8m 28s
build (gcc, dpdk-light)	12m 19s
build (gcc, netmap)	7m 50s
build (gcc, vanilla-nopool)	7m 26s
build (gcc, dpdk-flow-dynamic)	8m 40s
build (clang, vanilla)	13m 20s
build (clang, dpdk)	11m 54s
build (clang, dpdk-light)	14m 30s
build (clang, netmap)	12m 3s
build (clang, vanilla-nopool)	13m 2s
build (clang, dpdk-flow-dynamic)	12m 44s
	2h 10m 7s

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