PythonQt Code

- added call method that does a direct call on the ObjectType
- added comments and improved docs

started to update/improve docs

- 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

Documentation updates only. No changes to code.

reorganized SVN tree into branches, tags and trunk