* Add class check to added tasks
* Make Task class asbtract
* Update tasks to use abstraction
* Update task property calls to methods and add extended class
* Fix up task tests
* Reorder script enqueing to check less expensive operations first
* Fix up dismissable and snoozeable checks
* Fix up typos
* Load default task classes on init
* Handle PR feedback
* Fix extended tasks not showing
* Update is_visible to can_view in deprecated tasks
* Use TestTask class for unit tests
* Add changelog entry
* Fix up API tests
* Update ExtendedClass name to DeprecatedExtendedClass
* Fix up rebase
Joshua T Flowers