In-place upgrade does not update the index.html file of existing domain (6831429)

Description

While performing in-place upgrade, the index.html file of a domain that already exists is not replaced. It might still show the old version of the server. This index.html file could be replaced by the index.html file from SGES_BASE.

SGES_BASE/lib/install/templates/ee/index.html DOMAIN_DIR/docroot/index.html