Merge branch 'PHP-5.5'

* PHP-5.5:
  Embeds the content of the DTD in the DOCTYPE declaration of the XML files.
  Adds 2 new xml files which include the dtd path relative to the base directory for the php source code. It fixs the fail on the load of the dtd in the tests modified by this commit.
  Adds files: error 1 to 5 and variation 1 to 4