Add changes list for SVN commit dialog
Summary:
SVN commit dialog box contains no list of changes that will be commited. This is often confusing.
This commit adds basic changes list for SVN commit action.
Also contains workaround for QTBUG-40584 to preserve dialog sizes, see KWindowConfig::restoreWindowSize() docs.
Reviewers: Dolphin, elvisangelaccio, meven, VDG, ngraham
Reviewed By: Dolphin, meven, VDG, ngraham
Subscribers: ngraham
Differential Revision: https://phabricator.kde.org/D26921