v0.4.1

• Repackaged to not use a Wheel distribution

v0.4.0

• Encapsulated parsed patterns in a new Pattern class

v0.3.0

• Update for STIX 2.0 WD02.
• Add "inspector" module to extract features from patterns.
• Improve error messages.
• Update to ANTLR 4.7
• Add testing for Python 2.6 and 3.6