the default completion state of a Task is always False.
we encourage to place a comment where parent methods are being overwritten
updated docstrings of Command
Overwriting GeDialog.Restore() is not necessary here
updated docstrings
reimplemented layout building process and ui response
stripped down required resource symbols
rewrote task loading/saving
Restore(), set flush to False when initial was specified
TodoListDialog.Command(), fixed computation of dynamic widget indecies
implemented a third widget per Task which can remove it
renamed from Todo to Task list
the text of finished tasks is now disabled
Merge pull request #6 from PluginCafe/gui/task-list

merge gui/task-list into master