Revamped ShemovCleaner to a QTabWidget

It's a rather large commit. After renaming ShemovCleaner to
TorrentWidget, I had to recreate ShemovCleaner as MainWindow with a
single Tab.

Then I created QActions for everything, including a QToolBar, a QMenu
and a contetext Menu. For that the button bar at the bottom had to go.

Oh, and I added some icons for the actions!

1 files changed, 0 insertions, 0 deletions

diff --git a/refresh.png b/refresh.png
new file mode 100644
index 0000000..afa2a9d
--- /dev/null
+++ b/refresh.png