phpwiki-1.2.8 released

The old-stable branch needed some fixes, which I did in January 30, but needed some time to get to a release.

• register_globals=off fix:
  fix and centralize broken register_globals=off logic.
• update message catalog
• replace mysql_pconnect by mysql_connect

See http://sourceforge.net/project/showfiles.php?group_id=6121&package_id=14187&release_id=317430