0.3.3

• Added handling of ssl_ca_certs in MongoConfig

0.3.2

• Adds Python 3.6 and 3.7 to the build
• Resolves several DeprecationWarnings on newer versions of Python
• Miscellaneous tests and flake8 cleanup

0.3.1

Added a trait for pathlib.Path.

0.2.7

Adds a new LengthBoundedUnicode type that requires minlen and maxlen arguments and validates that input unicode values' lengths fall within the specified bounds.