Log Message:
Release 0.14:

As rc2.

* docutils/docs/ref/docutils.dtd:
  - Enable validation of Docutils XML documents against the DTD:

* docutils/parsers/rst/:
  - Added functionality: escaped whitespace in URI contexts.
  - Consistent handling of all whitespace characters in inline markup
    recognition. (May break documents that relied on some whitespace
    characters (NBSP, ...) *not* to be recognized as whitespace.)

* docutils/utils/smartquotes.py:
  - Update quote definitions for et, fi, fr, ro, sv, tr, uk.
  - Add quote definitions for hr, hsb, hu, lv, sh, sl, sr.
  - Differentiate apostrophe from closing single quote (if possible).
  - Add command line interface for stand-alone use (requires 2.7).

* docutils/writers/_html_base:
  - Provide default title in metadata.
  - The MathJax CDN shut down on April 30, 2017. For security reasons, we
    don't use a third party public installation as default but warn
    if `math-output` is set to MathJax without specifying a URL.
    See math-output_ for details.

* docutils/writers/html4css1:
  - Respect automatic table column sizing.

* docutils/writers/latex2e/__init__.py
  - Handle class arguments for block-level elements by wrapping them
    in a "DUclass" environment. This replaces the special handling for
    "epigraph" and "topic" elements.

* docutils/writers/odf_odt:
  - Language option sets ODF document's default language
  - Image width, scale, ... set image size in generated ODF.

* tools/
  - New front-end ``rst2html4.py``.