D13706: [KMoreTools] Enable installing tools via appstream url

[Dominik Haumann]

dhaumann added a reviewer: gregormi.

REPOSITORY
  R304 KNewStuff

REVISION DETAIL
  https://phabricator.kde.org/D13706

To: nicolasfella, #frameworks, gregormi
Cc: kde-frameworks-devel, michaelh, ngraham, bruns