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* Allowed Manhole to be configured without any thread or activation (in case you want to manually activate).
* Added an example and tests for using Manhole with uWSGi.
* Fixed error handling in ``manhole-cli`` on Python 3 (exc vars don't leak anymore).
* Fixed support for running in gevent/eventlet-using apps on Python 3 (now that they support Python 3).
* Allowed reinstalling the manhole (in non-``strict`` mode). Previous install is undone.