Merge branch 'v4.0'

config/SharedConfig.ts

helpers/ArchiveHelper.ts

helpers/Dojo/SharedAssignmentHelper.ts

helpers/Dojo/SharedExerciseHelper.ts

helpers/LazyVal.ts

helpers/Toolbox.ts

helpers/TypeScriptExtensions.ts

helpers/recursiveFilesStats/RecursiveFilesStats.ts

logging/WinstonLogger.ts

managers/SharedGitlabManager.ts

types/Dojo/AssignmentFile.ts

types/Dojo/DojoStatusCode.ts

types/Dojo/ExerciseResultsFile.ts

types/Gitlab/GitlabAccessLevel.ts

types/Gitlab/GitlabCommit.ts

types/Gitlab/GitlabFile.ts

types/Gitlab/GitlabGroup.ts

types/Gitlab/GitlabMember.ts

types/Gitlab/GitlabMilestone.ts

types/Gitlab/GitlabNamespace.ts