Frontend: Main window: Progress bar: make sure the text is shown

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Merge branch 'stable' of github.com:jflesch/paperwork into stable
Add instructions for debian install using python-stdeb

Alternative to sudo pip install, use generated debian packages.
Merge pull request #346 from arthurlutz/patch-1

Add instructions for debian install using python-stdeb
Remove executable bits on paperwork.desktop (useless)

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Merge branch 'stable' into unstable