D19132: Update libs/widgets to c++11

[Carl Schwan]

ognarb added a comment.


  In D19132#416519 <https://phabricator.kde.org/D19132#416519>, @danders wrote:
  
  > 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 :)
  
  
  Thanks for the review, I will work next on libs/{pigment,version,widgetutils}.

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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