Sigmatools release 0.18.1

Improved test coverage

* Added test case
* Removed unused code

Release 0.16.0

Sigmatool release 0.15.0

Sigmatools release 0.14

Sigmatools release 0.13

Fixed build

Missing package specification

Sigmatools release 0.12

* Value modifiers
* Config name cleanup

Sigma tools release 0.11

Sigma tools release 0.10