Merge pull request #57 from bastikr/mathjax

Switch from pngmath to mathjax do display formulas in docs.

Author: pombredanne

docs/conf.py

@@ -22,7 +22,7 @@
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.pngmath', 'sphinx.ext.inheritance_diagram']
+extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.mathjax', 'sphinx.ext.inheritance_diagram']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['.templates']