- Enhancement: created a check when saving board configuration that disallows problematic board column IDs. Now allowed IDs start with a letter (a-z, A-Z) followed by 1-N numbers or letters (a-z, A-Z)

- Enhancement: Kanbanly now tries to automatically refresh authentication related access token to avoid unnecessary login prompts. Note however that when your computer is turned off, the access token will expire after a while so login prompts cannot be avoided completely. This is how the chrome.identity API based authentication works.
- Bugfix: reminders weren't working properly - fixed
- Enhancement: requireInteraction returned for notifications on Chrome - if the attribute isn't supported on the browser, a normal notification is shown

- Bugfix: "requireInteraction" attribute removed from showNotification because it isn't supported by Firefox
- Bugfix: due date datetimes should be now properly handled. Note that Google Tasks API sends only the date of the due date - hours & minutes information is discarded so if you didn't set a specific time on Kanbanly, the due date is scheduled at 00:00:00. This is an unfortunate limitation in the Tasks API. See https://developers.google.com/tasks/reference/rest/v1/tasks
- Bugfix: clear deadline function now also clears the duetime setting

- Enhancement: added "persistent" attribute to manifest.json

- Feature: you can now hide/show board list with the "hamburger icon" in the top left-hand corner