Release Notes

• this release drops support for python 2.7: 4d38a4d
• add explanatory error message to check_input decorator: c1a3616
• add test code snippets to sphinx documentation: ca5b39d
• add type hinting: f67050d
• modularize pandera code: ffd57d8
• more builtin data type support: b01eef0
• add citation information: 6061254
• update repo links : cosmicBboy -> pandera-dev: e6782f1
• add dev installation instructions: f7950ad
• improve formatting and wording of sphinx documentation: 7310d0d
• make SchemaError message formatting functions private: fc071d6
• add docstrings to error classes: ed4e8f8
• add human-readable str and repr methods to DataFrameSchema: 954d8a2
• update requirements.txt, remove enum34: db87b21