Comment 4 for bug 282178

Person.searchTasks() is now working in the linked branch, it returns the tasks related to a user (the tasks shown in bugs.lp.net/~username)

Before requesting a merge I'll have to:
  * think about moving IHasBugs.official_bug_tags somewhere else, as persons can not have official tags
  * add more tests

Once this landed I will add 'alias' methods to IPerson which will map to +assignedbugs, +reportedbugs etc.
I think this methods will be called Person.searchAssignedTasks() , Person.searchReportedTasks(), etc.