Prepare for version 5.9.0 release
Use a guard clause instead of wrapping the code inside a conditional expression
determinte -> determine
Update status fixture to include extended entities
Remove include_entities option
Rename Twitter::REST::Client::ENDPOINT to URL_PREFIX
Add support for extended entities
Add Twitter::REST::Client#upload
Update Travis CI url
Merge pull request #572 from fgo/patch-2

Update Travis CI url
Update ERD to add Twitter::Error::UnacceptableIO
HTTP 420 can still be returned by the streaming API
Ensure predicate methods return false for Twitter::NullObject
Replace Faraday with the HTTP gem
JSON keys are parsed into strings, not symbols