Changed

• Added support for django templates as workflow expressions
• Changed publish element type to list to allow for sequential publishing of variables
• Fixed expression parsing for non-string values
• Added support for POST calls from workflow
• Reworked task implementation into phases for proper code structure
• Command line options for partial generation and regeneration of code
• Support for custom functions in templates and expressions
• Add support for simple non-array headers in workflow output
• Basic compliance tests
• Updated jmespath
• Misc. bug fixes