Add SEPA support.
Merge branch 'master' into sepa
Add notifys for convenient QML property bindings.
Fix SEPA support.
Add SEPA in accounting and create SEPA export.
Refactor account handler.

Extract accounting data creator, transaction creator and transaction exporter.
Refactor, create purpose in accounting data creator.
Refactor rename settings property.
Change bank account in email.
Add file filter on file dialog.
Fix bug in balance pesister. Set accouting reference.
Fix booking, dont book rate.
Remove unwanted QtTestUtil from CMake.
Fix SEPA mask in member detail qml view.
Change account nr. in transaction.
Fix transaction creator test after change account nr.
Add new year in CashTab (workaround).