dokuwiki - security update

This fixes a possibility of bypassing the wiki authentication when an Active
Directory is used for LDAP authentication. These two CVE are almost the same,
one apparently being a superset of the other. They are fixed together.

• CVE-2014-8763
  DokuWiki before 2014-05-05b, when using Active Directory for LDAP
  authentication, allows remote attackers to bypass authentication via a
  password starting with a null (\0) character and a valid user name, which
  triggers an unauthenticated bind.
• CVE-2014-8764
  DokuWiki 2014-05-05a and earlier, when using Active Directory for LDAP
  authentication, allows remote attackers to bypass authentication via a
  user name and password starting with a null (\0) character, which triggers
  an anonymous bind.

For Debian 6 Squeeze, these issues have been fixed in dokuwiki version 0.0.20091225c-10+squeeze3