~ minor clean-up/docu
~ minor changes in test framework
[https://github.com/wuetherich/ds-annotation-builder/issues/28]
[https://github.com/wuetherich/ds-annotation-builder/issues/25]
Fixed
[https://github.com/wuetherich/ds-annotation-builder/issues/23]
Fixed
[https://github.com/wuetherich/ds-annotation-builder/issues/24]
Fixed