Fixed|Documentation: Fixed patching of the QCH source

Working around Doxygen issues with QCH generation (invalid XML
structure).
Documentation|Fixed: Doxygen markup issues
Fixed|Ring Zero: Fold title should say "(0)" when no games in the subset

The 'noGames' indicator was counted as a child inside the subset.
Merge branch 'master' into common-episode-definition
Refactor|libcore|Record: Trying out C++11 for listing subrecords

One can use a lambda function to filter out the list of subrecords.
libcore|ScriptedInfo: Utility method for listing typed subrecords
qmake|Unix: Enable C++11

C++11 is now enabled for all g++/clang++ builds.
Cleanup
Refactor|libcore|libcommon: Removed use of auto_ptr

std::auto_ptr is deprecated in C++11. Also, applied established
conventions when returning a MapStateReader via
SavedSession::IMapStateReaderFactory -- just return a pointer to
indicate transfer of ownership.