D19132: Update libs/widgets to c++11

[Dag Andersen]

danders accepted this revision.
danders added a comment.
This revision is now accepted and ready to land.


  Ok, I can't say I have scrutinized every change, but...
  Could you give a heads up when you continue with other parts or else there may be merge problems.
  I'm working on karbon and pageapp atm, so please keep off :)

REPOSITORY
  R8 Calligra

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D19132

To: ognarb, #calligra:_3.0, leinir, danders
Cc: danders, Calligra-Devel-list, dcaliste, cochise, vandenoever
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