Fixed a name clash for a type in a module that has the same name as the module
when building against Python v2.
Bumped the internal API to v11.0.
The PyQt4 and PyQt5 specific data structures are now completely separate in
preparation for the signal changes needed by PyQt5.
Renamed the PyQt4Flags and PyQt4NoQMetaObject annotations so that they are not
PyQt4 specific.
Implemented the PyQt5 signal emitters.
Support for the PyQt4 signal hacks when building against Qt5.
Fixed the creation of wrapper scripts for Python v3.4 on OS/X.
Added the PyQt signal hack #3.
All versions of signals with optional arguments are now generated for PyQt4
when built against Qt5.