Compile TinyXml2 with the Dinkum C++ of QNX 6.5 and QNX 6.6.

When we include c++ headers, we have to use explicit std::
Compile TinyXml2 with the Dinkum C++ of QNX 6.5 and QNX 6.6. Processed review comment from leethomason
Merge pull request #230 from antonindrawan/master

Compile TinyXml2 with the Dinkum C++ of QNX 6.5 and QNX 6.6.