Articles database update

The latest version of articles provides some new features, some of these required database changes, so to be able to use this version of Articles, you will need to update your current database by running this script.

The alternative is to make copies of your articles, uninstall the Articles module from the Xoops admin, install v0.09 and re-enter all your category and articles again.

This version updates the Articles database tables from v0.06 to that of v0.09 - this skips v0.07 and v0.08 as they were not publically released.