Main window: cosmetic

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Main window: Index loader: never send the index-loading-start signal more than once

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Main window: Minor optimisations of the document list

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Main window: Fix layout

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Main window: fix scan end

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Merge branch 'testing' of github.com:jflesch/paperwork into testing
Mainwindow: Doclist: Fix single doc refresh

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