* Implement new attributes for labels
* Include correct API header in all Labels calls
* Add integration tests for Create and Update methods for labels
* Use improved labels API in observable client
* found even more endpoints that need the preview header!
* RemoveFromIssue actually returns the list of remaining labels rather than null. This change should be source compatible but not binary compatible
* Implement new labels search method in SearchClient
* Implement reactive client SearchLabels
* Improve documentation for label search methods
* more comment tidy up
* Add release notes and bump version to 0.24
* run "build FormatCode" to fix up whitespace/formatting issues
* Fix failing Ssh key tests due to "validation exception". This key must be in use on github (under another user, most likely from these tests failing). Changed to a new SSH key and tweaked tests to reduce chance of a key being created and not destroyed
* Assignee and Assignees cant both be specified on NewIssue. We missed this one in the PR. Marked Assignee as [Obsolete] and fixed tests to use Assignees
* Fix a couple of Reactions tests that were calling the wrong client methods
* Fix timeline tests - looks like the response class has changed shape a bit, it now has an Issue object in the payload and Id field isnt present (leaving Id field there in case other timeline events do use it)
* Fix some following tests that require the test user to follow more than 1 other user
* Unskip these Event tests now because apparently they work!
* add breaking changes notes
* Update ApiErrorMessageSafe to return null for empty and whitespace strings (#1540)
* return null if ApiError.Message is empty or whitespace
* Uncomment test, which now passes
* update release notes to include PR1540
* Add "Bot" AccountType, was causing a deserialization exception when running the integration test "SearchForExcludedLanguage" (#1541)
* Update to include PR1541
* add bullets to make release notes easier to read
* markup additional code mentions in notes
* Fix grammar
fields => field
