Added reference tracking to template arguments. Not fully tested, complete solution to ticket #838.
Fixed one error which made it break the test suite. Now it doesn't break, but still needs more test cases to see if the functionality works on all inputs.
Now has a legitimate warning message.
Merge branch 'master' of https://github.com/cython/cython
Added tests, adjusted warning message, and fixed the line in PyrexTypes.
Merge pull request #335 from BigFav/master

Generate warning when Python object is used as C++ container reference parameter.