Added support for htmlArea to richtext widget. Controlled by the UseHtmlAreaForRichtextP parameter, which currently defaults to 'false', because the user doesn't have a way to turn it off yet, and it doesn't work in all browsers.
Implementing ticket #20: Bulk Task Response. The bulk of the changes are on the tasks include and the task-detail page. Implementing ticket #17: sending message to own role (just removing an if statement)
Rolled back Dirk's change from view/ to download/ URLs. The view/ URL form is required to make interlinked HTML documents be browseable straight from file-storage, and is a critical feature in .LRN, particularly for Heidelberg