uWSGI 2.0.15
Maintenance release

Issues
Unfortunately there are still 2 unfixed long standing bugs in this release:
* suwsgi protocol behind nginx does not work reliably when a request body is sent by the client (https://github.com/unbit/uwsgi/issues/1490). As we cannot reproduce it in uWSGI itself, we will start checking in the nginx module too
* There are reports of the 窶徂oly窶� wsgi env allocator crashing on specific conditions, this release includes a bunch of workarounds but they could not be enough

Changes
* workaround for the holy allocator for avoiding crashes with newrelic (see Issues notes)
* avoid time overflow in request logs during (even minimal) clock skew
* fixed python logger with python3
* fixed catch-exceptions with python3
* backported 窶彭on窶冲 clone $env->{窶湾sgix.io窶凩 on 窶榔SGI cancel窶吮��
* added support for authentication in the redis logger
* added the spinningfifo action hook to the core
* fixed compilation with php 7.1
* correctly returns error code 22 in lazy_apps + master_mode
* fixed compilation for OpenSSL 1.1
* Add a 窶都kip-atexit-teardown option to skip perl/python teardown
* fixed static file serving over https-socket

(adam)