fix changes to method signature, fixes #2564

lib/classes/JsonApi/Routes/Blubber/CommentsCreate.php

lib/classes/JsonApi/Routes/Blubber/CommentsUpdate.php

lib/classes/JsonApi/Routes/Blubber/ThreadsCreate.php

...lasses/JsonApi/Routes/ConfigValues/ConfigValuesUpdate.php

...nApi/Routes/CourseMemberships/CourseMembershipsUpdate.php

...s/JsonApi/Routes/Courseware/CoursewareInstancesUpdate.php

...es/JsonApi/Routes/Courseware/StructuralElementsUpdate.php

lib/classes/JsonApi/Routes/Courseware/UnitsUpdate.php

lib/classes/JsonApi/Routes/Files/FileRefsUpdate.php

lib/classes/JsonApi/Routes/Files/FoldersUpdate.php

lib/classes/JsonApi/Routes/Forum/AbstractEntriesCreate.php

lib/classes/JsonApi/Routes/Forum/ForumCategoriesCreate.php

lib/classes/JsonApi/Routes/Forum/ForumCategoriesUpdate.php

lib/classes/JsonApi/Routes/Forum/ForumEntriesUpdate.php

lib/classes/JsonApi/Routes/Messages/MessageUpdate.php

lib/classes/JsonApi/Routes/News/NewsUpdate.php