Build using gcc-4.8.3 / Qt-4.8.6 / kdelibs-4.14.9 :

umbrello/uml.{h,cpp}
- At function config() GCC rightfully complains about the `const'
  qualifier. Remove it.

umbrello/codegenerators/python/pythonwriter.cpp
- Use QLatin1String in lieu of QStringLiteral.
- Use QRegExp in lieu of QRegularExpression.
- Simplify functions fixTypeName and findIncludeFromType.