Allow DelimitedScheme to override strictness and safety.
Merge pull request #419 from azymnis/argyris/strictness

Allow DelimitedScheme to override strictness and safety.
Update README and CHANGES.md for releasing 0.8.5.
bump versions
Merge pull request #425 from twitter/bumpversions

Merged #425
Merge pull request #424 from reconditesea/klin_version_changes

Update README and CHANGES.md for releasing 0.8.5.