Upstream changes:
0.06 2018-06-08
- update toolchain for modern perl environments including
* automated regression test
* test coverage analyzation
* pod coverage
- introducing common code style
- introduce a bunch of missing functions:
* slice_without (Thanks to Theo van Hoesel <Th.J.v.Hoesel@THEMA-MEDIA.nl>)
* slice_missing / slice_missing_map (Thanks to Christoph Zimmermann <christophemzim@web.de>)
* slice_notdef / slice_notdef_map (Thanks to Christoph Zimmermann <christophemzim@web.de>)
* slice_true / slice_true_map
* slice_false / slice_false_map