D19132: Update libs/widgets to c++11

[Dan Leinir Turthra Jensen]

leinir added a comment.


  There is an issue with Qt's foreach, however if the author would be so nice as to check that this version using C++11 iteration does not break building on Windows, then it can go in... Though, yes, it most certainly wants testing, and i don't currently have a functioning windows build system. 2890f2a929034d613c4b4a8f3e6ad77c23162d41 <https://phabricator.kde.org/R8:2890f2a929034d613c4b4a8f3e6ad77c23162d41> is one of the commits which did the q_foreach/for loop change previously, to see what actually got changed.

REPOSITORY
  R8 Calligra

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

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