Merge tag '2.0.0' into develop

2.0.0

* tag '2.0.0':
  Update changelog
  Bump release
  Add @bittner to the list of contributors
GNU GPL v3.0 license
Update README, support syntax highlighting
Update contributers list
Bump version
Update CHANGELOG, 2.0.1
Merge branch 'release/2.0.1'

* release/2.0.1:
  Update CHANGELOG, 2.0.1
  Bump version
  Update contributers list
  Update README, support syntax highlighting
  GNU GPL v3.0 license