Nan Utilities

• Conversion between nan and None values while keeping other data unaltered.

JSON Deserialization bug fix

• Tightened iso datetime deserialization to a stricter iso datetime format needing a ":" or a "-".

Minor Enhancements

• Helper methods to easily discover a delimited file's field names from the header line.

minor cleanups

Merge pull request #32 from portfoliome/ensure-dir

Ensure dir

Record utilities

• Migrate dictionary record utilities like key replacement from converters -> records
• Specification for injecting null values into missing record fields.

Small JSON Serialization Changes

• Change JSON serialization of UTC aware datetime to serialize with "Z" suffix versus 00:00.

Minor api change

JSON deserialization will use custom converter map for nested map-like objects.

Python 3.6 support

• Add support for Python 3.6
• Bug fixes

JSON Deserialization

Add object hook to deserialize strings that make standard formats like uuid's or iso dates.

Dictionary key renaming utilties

• Rename name keys removing keys not included in rename map
• Rename keys, passing through key/values not in rename map.