Revert "Update to 1.6.3 (rhbz#1426928)"

This reverts commit 6fe65c3b4d.

html-parser-HTMLParserError-removed.patch

@@ -0,0 +1,21 @@
+diff --git Sphinx-1.3.1/sphinx/builders/linkcheck.py~ Sphinx-1.3.1/sphinx/builders/linkcheck.py
+index 9f5c2131c2..71bec0262d 100644
+--- Sphinx-1.3.1/sphinx/builders/linkcheck.py~
++++ Sphinx-1.3.1/sphinx/builders/linkcheck.py
+@@ -19,9 +19,15 @@ from six.moves import queue
+ from six.moves.urllib.request import build_opener, Request, HTTPRedirectHandler
+ from six.moves.urllib.parse import unquote, urlsplit, quote
+ from six.moves.urllib.error import HTTPError
+-from six.moves.html_parser import HTMLParser, HTMLParseError
++from six.moves.html_parser import HTMLParser
+ from docutils import nodes
+ 
++try:
++    from HTMLParser import HTMLParseError
++except ImportError:
++    class HTMLParseError(Exception):
++        pass
++
+ from sphinx.builders import Builder
+ from sphinx.util.console import purple, red, darkgreen, darkgray, \
+     darkred, turquoise