Wily

* Added a German translation (DahlitzFlorian)
* Added the version number to the help text (DahlitzFlorian)

* Added infrastructure for international languages in CLI
* Fixed bug on configuration of operators [PR116](https://github.com/tonybaloney/wily/pull/116) by skarzi

* Fixed bug in use of mkstemp in log files

* Fixed the color of the maintainability index so higher is better (green)

* Added a `rank` command to show files either matching a pattern or all in the index sorted by a particular metric.

* Git archiver now supports a detached head state. Means that wily build can run in a detached head, will checkout the reference after build.
* Add argument to `wily diff` to specify a target revision to compare with, can be a Git SHA or a Git reference, e.g. `HEAD^1`
* `wily diff` argument for `--all`/`--changes-only` has shorter `-a`/`-c` also.
* `wily diff` argument for `--metrics` has shorter `-m` also.
* `wily report` argument for `--message` has shorter `-m` also.
* `wily index` argument for `--message` has shorter `-m` also.
* Added examples, tests and documentation for CICD patterns.