Run jekyll as part of the matrix-doc build

- this saves us having to run it manually on the web server.

jekyll/_plugins/jekyll-rst-master/rst2html.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+
+# :Author: David Goodger, the Pygments team, Guenter Milde
+# :Date: $Date: $
+# :Copyright: This module has been placed in the public domain.
+
+# This is a merge of the `Docutils`_ `rst2html` front end with an extension
+# suggestion taken from the `Pygments`_ documentation, reworked specifically
+# for `Octopress`_.
+#
+# .. _Pygments: http://pygments.org/
+# .. _Docutils: http://docutils.sourceforge.net/
+# .. _Octopress: http://octopress.org/
+
+"""
+A front end to docutils, producing HTML with syntax colouring using pygments
+"""
+
+try:
+    import locale
+    locale.setlocale(locale.LC_ALL, '')
+except:
+    pass
+
+from transform import transform
+from docutils.writers.html4css1 import Writer
+from docutils.core import default_description
+from directives import Pygments
+
+description = ('Generates (X)HTML documents from standalone reStructuredText '
+               'sources. Uses `pygments` to colorize the content of'
+               '"code-block" directives. Needs an adapted stylesheet' 
+               + default_description)
+
+def main():
+    return transform(writer=Writer(), part='html_body')
+
+if __name__ == '__main__':
+    # rav 2016/10/18: encode the output as UTF-8, otherwise python will grumble
+    # when writing to a pipe, because it doesn't know how to encode unicode
+    # strings.
+    print(main().encode('utf-8'))