New upstream release
    
    - Don't search in command-not-found if backend is known to be too slow
    - Correctly match the installed file to a package when checking shared libraries
    - Do not send the UpdatesChanged signal for only-download or simulate
    - Don't throw a cryptic warning when 'pkcon update' has no packages needing an update
    - Emit RequireRestart(system) in a PackageKit daemon plugin
    - Move the libpackagekit-qt code to a separate project
    - Perform the simulation of spawned transactions correctly
    - Reinstate 'pkcon list-create' for the service pack functionality
    - Show a progressbar if the user presses [esc] during the system update
    - yum: Don't crash when resolving groups
    - yum: Don't rely on a blacklist for RequireRestart
    - yum: Handle NoMoreMirrorsRepoError when using repo.getPackage()
    - yum: Only emit the package list once when using WhatProvides() with multiple search terms
    - yum: Use a the error NoPackagesToUpdate when there are no updates available
    - zif: Don't try to cancel the backend if it's not running