Version 3.0.0

Implemented enhancements:

• Improve the docs for Rentals#search endpoint
• Document "fee" create action
• Add info about adults and children params being available in Rentals#search

• Update api docs with bedrooms and bathrooms endpoints
• Update rentals search with prices as floats, serialized taxes and rentals fees
• Add published_only option to rentals search.
• Explain how to setup your first BookingSync app
• Add docs for Tax#create
• Add Bedrooms and Bathrooms endpoint to APIv3
• Document payments_write_owned scope
• Update Search rentals scope response
• Add absolute_min_price to rental when ready.
• Explain that refresh\_token is regenerated after each refresh.
• Link to all our Open Source gems to connect with our API