Release 1.2.0

• Improvement: improve exception message and add detail method for raw response

Release 1.1.2

• Fix: fix "break from proc-closure (LocalJumpError)" error by upgrading Excon

Release 1.1.1

• Fix: always return a string for error.message

Release 1.1.0

• Fix: use url-encoded body for oauth endpoints
• Feature: improve exceptions for different status codes

Release 1.0.0

Initial release