PythonQt Code

code cleanup and rename of PythonQtWrapper to PythonQtInstanceWrapper and PythonQtMetaObjectWrapper to PythonQtClassWrapper, since these names match much better what these classes wrap, regarding that we are wrapping CPP objects as well

syncing with my current work, updating to 1.2, see changelog

- removed warnings
- fixed some memory leaks (only on cleanup)
- fixed bad QString usage as %s argument
- added PythonQtQFileImporter, which implements a default importer using QFile
- added PythonQt::self()->installDefaultImporter() to enable the new default importer
- modified example to make use of new importer
- removed ugly goto, which was copied from original zip import

merged in features from the MeVisLab repository
- added createModuleFromFile/createModuleFromScript/createUniqueModule
- switched object destruction to use QPointer and lazy wrapper removal to avoid expensive objectDestroyed signal connections
- added hash() support for PythnQtWrapper object
- added support for signal to python function connections where the function has less arguments than the emitted signal
- added setQObject[NoLonger]WrappedCallback API to support external reference counting on QObjects that are exposed to PythonQt
- implemented flush on std redirect to support python logging framework
- improved QVariant printing and fixed print error on MacX

reorganized SVN tree into branches, tags and trunk