fix ci (jacoc userguide samples)
some minor fixes on buildSetup plugin after review:

- REVIEW-1975 - update docs to use apilink when refering task types
- REVIEW-1995 - fix wrapper version check in BuildSetup integTest
- REVIEW-1998 - revert repackaging
- REVIEW-2000 - add templates for generated settings.gradle and build.gradle files
minor update on release notes jacoco chapter.