D25106: Also allow invoking session restoration logic when apps are manually launched

[Nathaniel Graham]

ngraham added a dependent revision: D11382: Add an option to show tabs from 
last time when Dolphin starts.

REPOSITORY
  R263 KXmlGui

REVISION DETAIL
  https://phabricator.kde.org/D25106

To: ngraham, davidedmundson, #frameworks
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns