Bug 1005114 - Profile includes list of completed tasks

User profile page displays task in progress and list of completed tasks, most recent first. The list of completed tasks is paginated. The "Welcome, user" string in the header links to the user profile. The profile page is only accessible by the user who owns it. 

Re pagination: I'm more or less repeating the template code used for paginating filtered tasks. Would be happy to implement that differently, but not sure how to avoid the repetition. Suggestions?

@bobsilverberg r?