Now Works with Python 2 & 3, Qt 4 & 5....
Now Works with Python 2 & 3, Qt 4 & 5.
CMake now generates different librariy files depending on the linked Qt/Python versions:
PythonQt - Qt 4.x + Python 2.x
PythonQt_3 - Qt 4.x + Python 3.x
PythonQt5 - Qt 5.x + Python 2.x
PythonQt5_3 - Qt 5.x + Python 3.x
Fix Qt 4 build.