Eventlet

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* PyOpenSSL is no longer required for Python 2.6: use the eventlet.green.ssl module. 2.5 and 2.4 still require PyOpenSSL.
* Cleaned up the eventlet.green packages and their associated tests, this should result in fewer version-dependent bugs with these modules.
* PyOpenSSL is now fully wrapped in eventlet.green.OpenSSL; using it is therefore more consistent with using other green modules.
* Documentation on using SSL added.
* New green modules: ayncore, asynchat, SimpleHTTPServer, CGIHTTPServer, ftplib.
* Fuller thread/threading compatibility: patching threadlocal with corolocal so coroutines behave even more like threads.
* Improved Windows compatibility for tpool.py
* With-statement compatibility for pools.Pool objects.
* Refactored copyrights in the files, added LICENSE and AUTHORS files.
* Added support for logging x-forwarded-for header in wsgi.
* api.tcp_server is now deprecated, will be removed in a future release.
* Added instructions on how to generate coverage reports to the documentation.
* Renamed GreenFile to Green_fileobject, to better reflect its purpose.
* Deprecated erpc method in tpool.py
* Bug fixes in: wsgi.py, twistedr.py, poll.py, greenio.py, util.py, select.py, processes.py, selects.py

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* Full-duplex sockets (simultaneous readers and writers in the same process).
* Remove modules that distract from the core mission of making it straightforward to write event-driven networking apps:
httpd, httpc, channel, greenlib, httpdate, jsonhttp, logutil
* Removed test dependency on sqlite, using nose instead.
* Marked known-broken tests using nose's mechanism (most of these are not broken but are simply run in the incorrect context, such as threading-related tests that are incompatible with the libevent hub).
* Remove copied code from python standard libs (in tests).
* Added eventlet.patcher which can be used to import "greened" modules.

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* GreenSSLObject properly masks ZeroReturnErrors with an empty read; with unit test.
* Fixed 2.6 SSL compatibility issue.

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* GreenSSL object no longer converts ZeroReturnErrors into empty reads, because that is more compatible with the underlying SSLConnection object.
* Fixed issue caused by SIGCHLD handler in processes.py
* Stopped supporting string exceptions in saranwrap and fixed a few test failures.

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* Fixed some more Windows compatibility problems, resolving EVT-37 :
http://jira.secondlife.com/browse/EVT-37
* waiting() method on Pool class, which was lost when the Pool implementation
replaced CoroutinePool.

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* 2.6 SSL compatibility patch by Marcus Cavanaugh.
* Added greenlet and pyopenssl as dependencies in setup.py.