port to use the new public api

apps/admin_dependencies_chk/settings.php

apps/bookmarks/index.php

apps/calendar/appinfo/app.php

apps/calendar/index.php

apps/contacts/index.php

apps/external/appinfo/app.php

apps/files/index.php

apps/files/settings.php

apps/files_encryption/lib/crypt.php

apps/files_imageviewer/appinfo/app.php

apps/files_pdfviewer/appinfo/app.php

apps/files_sharing/appinfo/app.php

apps/files_sharing/get.php

apps/files_texteditor/appinfo/app.php

apps/files_versions/history.php

apps/gallery/templates/index.php

apps/gallery/templates/view_album.php

apps/media/index.php

apps/user_ldap/settings.php