Pass protocol type to a client
Add support for TLS connections
Manage TLS auxiliary connections
encode hello version bitmap
decode hello version bitmap
TLS connection handling fixes
Merge pull request #13 from yamt/versionbitmap

Implement OF1.3 hello version bitmap
fix multipart_type
align OFPG_ constants to OF 1.3.1
Merge pull request #14 from yamt/multipart-type-fix

Fix multipart types ordering
Merge pull request #15 from yamt/ofpg

Fix OFPG_ constants
Fixes
Extend string encoding

String encoding in ofp_utils module now handles both binary strings as
well as regular ones.
Fixes FlowForwarding/LINC-Switch#72
Extend returned controller state information

Full controller state record should be returned even when given
controller is not connected to the switch, allowing to return
information about not connected controller in OF-Config and other
introspection functions.
FlowForwarding/LINC-Switch#71
Fixed controller connection replacement

When replacing controller connection, update connection
protocol type as well.

Fixes FlowForwarding/LINC-Switch#74
Properly handle no_buffer value in get/set config

Messages get_config_reply and set_config were not translating
miss_send_len field to enum value 'no_buffer' when they should.
As a result parser was throwing errors and packets were not properly
encoded/decoded.

Fixes FlowForwarding/LINC-Switch#77
Move PBB actions to their proper place in enum

Because PBB actions were in wrong place in enum , they were assigned
numbers 21 and 22 where they should have 26 and 27 according to the
OFP 1.3.1 spec.

Refs: FlowForwarding/LINC-Switch#68
Add explicit enum numbering to action types list

Because action types numbering has gaps according to OFP specification,
explicit enumeration for each action type was added, to avoid confusion
regarding numbers for different action types, and to avoid errors in the
future, when adding new action types.

Refs: FlowForwarding/LINC-Switch#68
Fix wrong encoding of match fields in flow mod

FlowForwarding/LINC-Switch#79
Fix flags encodig in v4 ofp_flow_stats message

FlowForwarding/LINC-Switch#80