Refactor to support different authentication mechanisms cleanly.
Added HISTORY entry for v3.0.0 including details of breaking changes and required changes in consumer code.
Fixes to code samples in README and HISTORY.
Minor code sample fix.
Fixed formatting.
Added creatsend_dotnet.General.AuthorizeUrl().
Added createsend_dotnet.CreateSendBase.RefreshToken() to support expired refresh tokens. Also added ExpiredOAuthTokenException to support this. Instructions added to README.
Added createsend_dotnet.General.ExchangeToken().
Updated Newtonsoft.Json.
Added OAuthErrorResult for handling of errors returned by OAuth requests.
Added test-createsend-dotnet project to main solution with a couple of preliminary tests.
Links to API documentation and example app.
createsend_dotnet.General.AuthorizeUrl() should not expect clientSecret as an argument.
Version 3.0.0.
History entry for version 3.0.0.