Add note about cplusplusout for nested_struct testcase
C++11 constexpr variables support added
More C++11 doc tweaks
More C++11 doc and test improvements
C++11 conversion operator example and docs added
C++11 alignof alignas testcase and further C++11 doc updates
C++11 std::reference_wrapper example - no support
C++11 result_of testcase
Add metaprogramming type_traits example in C++11 documentation
C++11 doc updates