Version bump to 0.28.1.pre
Merge pull request #20 from mcailler/master

Reassign tasks filtered by a tag, closes #8
Update changelog with new enhancement
Adds functionality to reassign tasks without an owner to a user and vice versa
Merge pull request #23 from mcailler/unassigned-reass

Adds functionality to reassign unassigned tasks to a user, or to reassign tasks from a user to no one being assigned.
Updated changelog to reflect changes
Renamed more references of stickies to tasks, closes #19
Minor refactoring
Version 0.28.1 finalized