Implement "move" equivalent of assignment operator for StrPair
add simple test for not-crashing
Merge branch 'properStrPairAssignment' of https://github.com/Dmitry-Me/tinyxml2 into Dmitry-Me-properStrPairAssignment
fix merge of operator=
Merge remote-tracking branch 'origin/master' into Dmitry-Me-properStrPairAssignment
very minor cleanup of commented out code
Merge remote-tracking branch 'origin/master'
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
switch to using pointer, not reference
Merge branch 'Dmitry-Me-properStrPairAssignment'
Merge pull request #230 from antonindrawan/master

Compile TinyXml2 with the Dinkum C++ of QNX 6.5 and QNX 6.6.
Error checking never actually checked anything
Merge pull request #234 from Dmitry-Me/errorCheckingNeverWorked

Error checking never actually checked anything
Reuse const FindAttribute for non-const version thereof
Merge pull request #235 from Dmitry-Me/reuseFindAttribute

Reuse const FindAttribute for non-const version thereof