Пакет alt-packages: Информация

- Changed (thx Andrey Alekseev):
  + new implementation of the repository management module (old "Repo" tab)
- Fixed (thx Andrey Alekseev):
  + progress dialog was resetting its scroll position with every message
  + progress dialog may not always be closable
  + possibility of closing progress dialog by alt+f4 while operation
    was still in progress
  + error dialog was not a top-level dialog
  + application was always suggesting updating database before upgrade,
    even if it was already updated

- Changed (thx Andrey Alekseev):
  + application restricted to a single instance
- Added (thx Andrey Alekseev):
  + Dbus-activation support
  + xdg-activation support
  + --replace cli argument
- Fixed (thx Andrey Alekseev):
  + segmentation fault when processing arguments
  + application could not quit when window is closed too fast
  + rpm selection dialog modality

- Update app icon (fix black background in KDE).