py api cleanup, replace use...

- PyLong_FromSsize_t --> PyLong_FromLong
- PyLong_AsSsize_t --> PyLong_AsLong

In all places except for those where python api expects PySsize_t (index lookups mainly).

- use PyBool_FromLong in a few areas of the BGE.
- fix incorrect assumption in the BGE that PySequence_Check() means PySequence_Fast_ functions can be used.

source/gameengine/VideoTexture/VideoBase.cpp

@@ -184,7 +184,7 @@ int Video_setRepeat(PyImage *self, PyObject *value, void *closure)
 		return -1;
 	}
 	// set repeat
-	getVideo(self)->setRepeat(int(PyLong_AsSsize_t(value)));
+	getVideo(self)->setRepeat(int(PyLong_AsLong(value)));
 	// success
 	return 0;
 }