Log Message:
This release fixes security vulnerabilities. Sites are urged to upgrade \ 
immediately after reading the security announcement:

    * SA-CORE-2009-004 Drupal core - Local file inclusion on Windows

In addition to this security vulnerability, the following bugs have been fixed \ 
since the 5.15 release:

    * #124492 by m3avrck, mfer: more accurate checking for valid URLs in valid_url()
    * #360038 by sun. Documentation improvement.
    * #179244 by tangent: line break filter operates on object element.
    * #62926 by karschsp: increase the free tagging field maximum length to \ 
1024; the database limits are per-tag.