v1.2.0

• Added support for headers with multiple entries.

v1.1.2

• Added Black configuration to the project.
• Small README.md changes.
• Removes empty line at the end of Message.__str__.

v1.1.1

• Fixed bug in feed where state needs to be called to compile msg.

v1.1.0

• Removed step_state() function for state property.

v1.0.1

• Updated README.md and added tests.

v1.0.0

Added PyPi auto-publishing.