Make sure that the setup can be launched even if the 'php-zip' module is not installed.
Make sure that the setup can be launched even if the 'php-zip' module is not installed.

git-svn-id: 8a2b0a969c74f87a9c14cf35f460fb9b394f82c6@4211 a333f486-631f-4898-b8df-5754b55c2be0

changi67/itop,changi67/itop,changi67/itop,changi67/itop