SCAN 1.3.1 bugfix release

Fixed:

[1976004] Wrong document date breaks the application

[1976266] No validation of date values in Document properties

[1976036] Indexing fails with String index out of range error

[1976045],[1925137] Function keys starts editing the table

[1976066] Application window doesn't open immediately on start

[1903350] Exclusion Filter Regular Expression (fixed partially)