Changed edit item workflow. Removed Validate button. Finish now calls onCheck and either shows errors or offers the opportunity to save changes and exit. Added weekday name abbreviation (%a) to shortdatefmt and shortyearlessfmt.  Changed finished from X to u"\2713" (checkmark). Show at most 10 repetions in finish item dialog.
Added finish screenshots.
Updated shortcut documentation.
tagged version 0.1.40