Merge pull request mbj#76 from mbj/fix/bump-to-0.2.6

Bump to 0.2.6

Prepare changelog for 0.2.5

Prepare changelog for 0.2.5

Bump version to 0.2.4

Prepare v0.2.3

Prepare v0.2.2

Prepare v0.2.1

Bump to 0.2.0

* Use mutant (development dependency) from git source to resolve dep
  cycle.

[relates mbj#37]

Prepare v0.1.17

Prepare version 0.1.16