Replace deprecated methods from old api:

PythonReturnErrorObject
  PythonIncRef

Fix some compiler warnings about missing initializers
in method tables.

source/blender/python/api2_2x/Wave.c

@@ -85,7 +85,7 @@ static PyMethodDef BPy_Wave_methods[] = {
 	 METH_NOARGS,"()-Return Wave lifetime"},
   {"setLifetime",(PyCFunction)Wave_setLifetime, METH_VARARGS,
 	 "()- Sets Wave lifetime"},
-	{0}
+	{NULL, NULL, 0, NULL}
 };