Qtodotxt

Test for issue 36

https://github.com/QTodoTxt/QTodoTxt/commit/ce55ed3e7f2fc9830f209b8a2c34dd07177af699

Bug fix release:
Fixed settings handling causing auto archive to behave not like expected at very first start.
Fixed missing Windows application logo.

port to pyqt5
add action for hiding/showing completed tasks
add action for hiding/showing future tasks
add action for hiding/showing sidebar

See the changelog here: https://github.com/mNantern/QTodoTxt/wiki/Changelogv140