Log Message:
Update to 4.9.1:

v4.9.1 23rd October 2009
  - A bug fix release.

v4.9 26th September 2009
  - Added support for __iter__ and __next__.  (__next__ is used for Python v2
    as well as v3.)
  - Added the %API directive.
  - Added the /API/ annotation.
  - Added sipIsAPIEnabled() to the C API.
  - Added sip.getapi() and sip.setapi() to the Python API.
  - Added sip.ispyowned() to the Python API.
  - Mapped types can now act as a namespace for enums and static methods.
  - The /Array/ annotation can now be applied to classes and mapped types.
  - The /NoArgParser/ annotation can now be applied to methods as well as
    functions.
  - Added the --arch flag to configure.py to specify which MacOS/X
    architectures are built.
  - SIP is now also licensed under the GPL v2 and v3.