QtBase_dev_Integration #2548: SUCCESS Tested changes (refs/builds/dev_1389649784): http://codereview.qt-project.org/74295 [PS4] - expand tabs and related whitespace fixes in *.{cpp,h,qdoc} http://codereview.qt-project.org/75066 [PS2] - Use the QMAKE_CXXFLAGS_WARN_ON variable for setting -Werror