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* Python 3 support.
* New C API to expose Greenlets to C Extensions.
* greenlet.switch() now accept's keyword arguments.
* Fix Python crasher caused by switching to new greenlet from another thread.
* Fix Python 2.6 crash on Windows when built with VS2009. (arigo)
* arm32 support from stackless (Sylvain Baro)
* Linux mips support (Thiemo Seufer)
* MingGW GCC 4.4 support (Giovanni Bajo)
* Fix for a threading bug (issue 40 in py lib) (arigo and ghazel)
* Loads more unit tests, some from py lib (3 times as many as Greenlet 0.2)
* Add documentation from py lib.
* General code, documentation and repository cleanup (Kyle Ambroff, Jared Kuolt)