Fix miscellaneous errors, fixes #1276

...iews/course/wizard/steps/lvgroups/lvgroup_searchentry.php

composer.json

lib/admission.inc.php

...issionrules/coursememberadmission/templates/configure.php

lib/classes/DbView.class.php

lib/classes/PageLayout.php

lib/classes/StudipArrayObject.class.php

lib/classes/StudipSemTreeViewSimple.class.php

lib/classes/coursewizardsteps/LVGroupsWizardStep.php

...arysearch/resultparsers/BASELibraryResultParser.class.php

...search/resultparsers/MarcxmlLibraryResultParser.class.php

...rarysearch/resultparsers/SRULibraryResultParser.class.php

lib/dbviews/range_tree.view.php

lib/dbviews/sem_tree.view.php

lib/extern/elements/ExternElementLinkInternSimple.class.php

lib/extern/modules/views/ExternSemLectureTree.class.php

lib/ilias_interface/IliasSoap.class.php

lib/modules/CoreForum.class.php