Improved error messages on authorization failures

Improved error messages on authorization failures

API Version Support & Project includes

To support new FreshBooks API version, you can now specify a specific version header and newer API error responses are correctly handled.

Changelog:

• Allow API version header configuration
• Handle new API version accounting errors
• Add includes parameter to project-like get calls

Attachment Upload & List Sorting

• Added upload attachment and image resources
• Fixed invoice_payment_options create call (was not creating)
• Updated webhook event error handling for new FreshBooks API error strcuture
• Added list sort builder

Identity Model Fixes

Fixed Identity "business_memberships" attribute to return Result objects

1.0.0 - Online Payments, Service Rates, Bill Payments

• Drop support for python 3.6 as it is end of life
• Added Bill Payments resource
• Added Service Rates resource
• Added Online Payments resource
• Additional configuration validation

Bills and Bill Vendors

• Added support for new Bills and Bill Vendors APIs
• Allow includes for create, updates of accounting resources

Project filter fixes

Fix equals filters for project-like resource

Merging of ListResults

• BREAKING client.current_user is not a method, not a property for more consistency.
• Joining of ListResult objects with __add__ to aid pagination of results, with example in README.

Documentation Updates

• Update documentation
• Minor test fixture updates
• Mark as Beta in pypi

Result Object Dates

date strings in Result objects now return as date and datetime objects. datetimes are zone-aware and normalized to UTC.