Fhirstarter

Breaking changes
* Default FHIR sequence is now R5; instructions for how to continue using FHIR 4R or other sequences are in the README

Enhancements
* Support for FHIR sequences STU3, R4, R4B, and R5
* Support for non-asynchronous interaction handlers
* Improvements to example implementation

Bug fixes
* Enhanced request parsing so that requests to mounted applications are handled correctly

**Full Changelog**: https://github.com/canvas-medical/fhirstarter/compare/0.13.9...1.0.0

**Full Changelog**: https://github.com/canvas-medical/fhirstarter/compare/0.13.8...0.13.9

**Full Changelog**: https://github.com/canvas-medical/fhirstarter/compare/0.13.7...0.13.8

**Full Changelog**: https://github.com/canvas-medical/fhirstarter/compare/0.13.6...0.13.7

**Full Changelog**: https://github.com/canvas-medical/fhirstarter/compare/0.13.5...0.13.6

**Full Changelog**: https://github.com/canvas-medical/fhirstarter/compare/0.13.4...0.13.5