Fix type of ofp_meter_config flag field
Fix ofp_v4_utils:mk_msg for flow_del and flow_del_strict

This function used to run mk_matches on the argument twice, which cannot
possibly work.
Add missing values to port_no structure
ofp v4: Fix some table-features crashes when talking with Open vSwitch

Also, reduce code duplication.
Merge pull request #77 from yamt/tf-ovs

ofp v4: Fix some table-features crashes when talking with Open vSwitch
Merge pull request #75 from efcasado/master

Add missing values to port_no structure
Merge pull request #59 from legoscia/fixes

Minor fixes for problems found by dialyzer
Merge pull request #5 from FlowForwarding/master

Merge changes from FlowForwarding/of_protocol