[Differential] [Request, 1 lines] D650: Make the preview dialog modeless

[elvisangelaccio (Elvis Angelaccio)]

elvisangelaccio created this revision.
elvisangelaccio added a reviewer: rthomsen.
Herald added a subscriber: kde-utils-devel.

REVISION SUMMARY
  The preview dialog was set as modal during the port to KF5.
  One might consider this as a fix to a regression, so we could even merge this
  for 15.12.1

TEST PLAN
  Now we can open more than one preview dialog.

REPOSITORY
  rARK Ark

BRANCH
  modeless-preview

REVISION DETAIL
  https://phabricator.kde.org/D650

AFFECTED FILES
  part/arkviewer.cpp

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  https://phabricator.kde.org/settings/panel/emailpreferences/

To: elvisangelaccio, rthomsen
Cc: kde-utils-devel