add SwitchConfig message
Merge branch 'master' into switchConfiguration
pretty print function
use type t in function
typo (use type t)
Merge remote-tracking branch 'upstream/master' into switchConfiguration

Conflicts:
	lib/OpenFlow0x04.ml
	lib/OpenFlow0x04.mli
	quickcheck/Arbitrary_OpenFlow0x04.ml
	test/Test.ml
Merge branch 'ofp_table' into switchConfiguration

Conflicts:
	lib/OpenFlow0x04.ml
	lib/OpenFlow0x04.mli
	quickcheck/Arbitrary_OpenFlow0x04.ml
	test/Test.ml
fix switchConfig : config req doesn't have body
Merge pull request #144 from fugitifduck/switchConfiguration

Switch configuration