PhpWiki 1.5.5 released

This is a bug-fix and enhancement release.

• Fix tooltip translation in CreateToc plugin
• Remove access keys
• Check MAX_PAGENAME_LENGTH in CreatePage
• Fix fatal database error with multiple comma-delimited sortby args
• Remove forbidden characters: ~<~>~[~]~{~}~"~|~# from pagename
• New property: ALLOWED_LOAD giving list of directories from which it is allowed to load pages.
• Upload: replace multiple spaces by single space
• Make functions merged and is_conflict public in lib/diff3.php (support request #162)