cofflowmod: intermediate commit, does not compile
Fixing small typo in the documentation of rofl-hal
crofconn => added method set_max_backoff()
crofconn => changes to operator<<
cifactions => fixed bug => in method append_action(), we call map_and_insert() internally in order to get the correct cofaction class copied, let to std::bad_cast exceptions under certain circumstances
Merge branch 'devel-0.4' into devel-0.5

Conflicts:
	test/rofl/common/caddress_test.cc
	test/rofl/common/openflow/Makefile.am
Merge branch 'devel-0.5' into akoepsel/devel-0.5/working
Merge branch 'akoepsel/devel-0.5/working' into akoepsel/devel-0.5/testing
Merge branch 'akoepsel/devel-0.5/testing' into akoepsel/devel-0.5/cofflowmod
revised classes cofmsg_flow_mod and cofflowmod
new test for class cofflowmod
new test for class cofmsg_flow_mod