Preparation for the 2.0.7 release

We had a really rough 2.0.6 release, according to feedback received. We have to get 2.0.7 better.

I intend to have a release before Christmas, and in this coming release we should have all reported crashes and regressions fixed.

So far, the worst regression received is the QKeyEvent handling, after sending QKeyEvent to the command widget by default.