Version 0.4.1

Fixed build on some systems.

Version 0.4

Highlights:
- now using Jansson library for json parsing
- added json frontend for easy consumption of plotnetcfg output by other tools
- included MTU if it's deemed non-standard
- fixed detection of openvswitch ports not connected in the kernel datapath

Version 0.3

Highlights:
- more complete netns detection, finds also unnamed net name spaces now
- reliable cross name space link detection for kernel 4.0+, falling back to
  heuristics for older kernels
- command line options support
- man page
- configurable path to ovsdb socket
- if the algorithm for cross name space link detection fails, do not
  terminate but include this info in the output file
- better support for Open vSwitch bonding

First public release.

This is the first version shared, let's call it 0.1.