Merge branch 'v1.15.x'
Merge branch 'v1.15.x'
update/clean up README
cosmetic changes
fix description in setup.py, more cosmetics
drop title in README
Merge pull request #1184 from boegel/README_docs

update/clean up README
Merge branch 'master' into develop
fix links to docs
Merge pull request #1224 from boegel/doc_refs

fix documentation references