Always add SecureStore module in WebAppInitializer

SecureStore module was only added when gerrit_site is found in the
database, not when it's specified as a system property. This was
causing Gerrit initialization error[1] when deploying in a web container
and configuring the site using gerrit.site_path property.

[1] https://groups.google.com/forum/#!topic/repo-discuss/oW7i93mZhRo

Change-Id: Ib723f1c37071142048f30585ab8e7a298c37664e
1 file changed