Cosmetic: form layout: enter/commit/activate type buttons to the right as usual in LTR applications
Edit fields: wait until combobox editingdone before validation/updating other gui controls. Backup: prepare for .zip functionality selecting files
Backup/restore: add support for zip files (.fbk.zip) for better compression. Currently only supports .fbk.zip files with one file.
Fix restore behaviour with zip files
Suggest backup filename