Fixed session import IE
Not allow import and export for iOS devices
Fixed the bug for the selection of session
Merge branch 'session_import_export' of https://github.com/felix-schmidt/arsnova-mobile into session_import_export
Fixed date display in export list
Forwarding after export
Merge branch 'session_import_export' of https://github.com/felix-schmidt/arsnova-mobile into session_import_export
Merge branch 'session_import_export' of https://github.com/felix-schmidt/arsnova-mobile into origin/session_import_export
Notification for import button
Merge branch 'session_import_export' of https://github.com/felix-schmidt/arsnova-mobile into origin/session_import_export
Preperation question answers are now saved during import
Merge branch 'session_import_export' of https://github.com/felix-schmidt/arsnova-mobile into session_import_export
Merge branch 'session_import_export' of https://github.com/felix-schmidt/arsnova-mobile into origin/session_import_export
Fixed bug with utf-8 encoding on session import.