* Update picoFeed to v0.1.28
* Add updated_date to database and bump version to 10.1.1
* Add updatedDate to item model
* Check for updatedDate when updating a feed
* Fix unit test to check for newer updatedDate
* Update picoFeed to 0.1.25
* Add updated_date to database
* Add updatedDate to item model
* Bump version to 9.0.5
* Check for updatedDate when updating a feed
* Fix unit test to check for newer updatedDate