StEP 1800 closes #1800

app/controllers/admin/extern.php

app/controllers/extern.php

app/controllers/institute/extern.php

app/views/admin/extern/extern_config/persbrowse.php

app/views/institute/extern/_table-header.php

app/views/institute/extern/_table-row.php

app/views/institute/extern/extern_config/_basic_settings.php

...s/institute/extern/extern_config/_institutes_selector.php

...ws/institute/extern/extern_config/_sem_types_selector.php

.../institute/extern/extern_config/_study_areas_selector.php

app/views/institute/extern/extern_config/_template.php

app/views/institute/extern/extern_config/coursedetails.php

app/views/institute/extern/extern_config/courses.php

app/views/institute/extern/extern_config/download.php

app/views/institute/extern/extern_config/persondetails.php

app/views/institute/extern/extern_config/persons.php

app/views/institute/extern/extern_config/timetable.php

app/views/institute/extern/index.php

app/views/institute/extern/info.php

app/views/institute/extern/new.php