Release v0.24 - A Sight For Sore Eyes (#1539)

* 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

Octokit.Tests.Integration/Clients/RepositoriesClientTests.cs

@@ -231,7 +231,7 @@ public class RepositoriesClientTests
             }
         }
 
-        [PaidAccountTest(Skip="Paid plans now have unlimited repositories. We shouldn't test this now.")]
+        [PaidAccountTest(Skip = "Paid plans now have unlimited repositories. We shouldn't test this now.")]
         public async Task ThrowsPrivateRepositoryQuotaExceededExceptionWhenOverQuota()
         {
             var github = Helper.GetAuthenticatedClient();
@@ -782,7 +782,7 @@ public class RepositoriesClientTests
         public async Task ReturnsRepositoriesForOrganization()
         {
             var github = Helper.GetAuthenticatedClient();
-            
+
             var options = new ApiOptions
             {
                 PageSize = 20,
@@ -1134,7 +1134,7 @@ public class RepositoriesClientTests
                 PageCount = 1
             };
 
-            var firstPage = await github.Repository.GetAllContributors("ruby", "ruby",  true, firstPageOptions);
+            var firstPage = await github.Repository.GetAllContributors("ruby", "ruby", true, firstPageOptions);
 
             var secondPageOptions = new ApiOptions
             {
@@ -1646,7 +1646,7 @@ public class RepositoriesClientTests
 
     public class TheGetAllTeamsMethod
     {
-        [IntegrationTest(Skip="Test requires administration rights to access this endpoint")]
+        [IntegrationTest(Skip = "Test requires administration rights to access this endpoint")]
         public async Task GetsAllTeams()
         {
             var github = Helper.GetAuthenticatedClient();
@@ -1656,7 +1656,7 @@ public class RepositoriesClientTests
             Assert.NotEmpty(branches);
         }
 
-        [IntegrationTest(Skip="Test requires administration rights to access this endpoint")]
+        [IntegrationTest(Skip = "Test requires administration rights to access this endpoint")]
         public async Task GetsAllTeamsWithRepositoryId()
         {
             var github = Helper.GetAuthenticatedClient();