This allows deployment tooling to easily switch from passing a binary
path to passing a Python module path. We'll use it shortly.
Change-Id: I36bb9ab43c3263b5064f35f4fc550722a0e83279
Signed-off-by: Artem Goncharov <artem.goncharov@gmail.com>
(cherry picked from commit 57c6b3187f)
Documentation for running Keystone with Apache HTTPD is in doc/source/install/