* Trim whitespace leading and trailing whitespace from checklist titles and checklist item names. Also error when attempting to save an itiem with an empty title (or all spaces).
* Checklist items may now link to other items on the same page and automagically check themself if the item they have linked to has been completed. If the item linked to is not visible, the checklist item is blurred on the page via CSS magic (and the title is changed to "Not available".
All required items may be linked to. Within a checklist, one may only link to a unique item on the page. Users may not check items which are linked to another item.
Add a popup and visual indicator that a checklist linked item is linked to another item.
Linked checklist styling has been improved and the tooltip messaging now reflects the status of the checkbox (that is a complete linked item has a separate message from an incomplete item).
When editing a checklist, the linked items are checked to ensure that the linked item is on the page.
Only able to link to items which are required. If there are no items required on the page, than linking is hidden.
* Removed unused imports in ShowPageProducer.java