Bug 964294 - Require version 1.0 or greater of Sphinx to build docs. r=LpSolit, a=justdave.

docs/en/rst/conf.py

@@ -21,7 +21,7 @@ import sys, os
 # -- General configuration -----------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
-#needs_sphinx = '1.0'
+needs_sphinx = '1.0'
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.