pgAdmin 4 commit: Add support for reverse proxied setups withGunicorn,

Add support for reverse proxied setups with Gunicorn, and document Gunicorn, uWSGI & NGINX configurations. Fixes #2001

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=f401def044c8b47974d58c71ff9e6f71f34ef41d

Modified Files
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docs/en_US/release_notes.rst     |   1 +
docs/en_US/release_notes_4_4.rst |  16 +++++
docs/en_US/server_deployment.rst | 126 ++++++++++++++++++++++++++++++++++++++-
web/pgAdmin4.py                  |  22 +++++++
4 files changed, 164 insertions(+), 1 deletion(-)