2.1.0
  - Fix prism_process_xmldoc to recognize code chunks with multiple classes

2.0.0
  - prism_process_xmldoc() now keeps original input code as hidden field in html
    pre blocks to facilitate copy-to-clipboard buttons.

1.1.0
  - Internally use xml2::read_html instead of read_xml to parse prismjs output.

1.0.0
  - Initial release
