Make the default target xml instead of sgml.
Make the default target xml instead of sgml.

Use a temporary file to pass results from latex2esis.py to
docfixer.py; this makes for better error detection by make (if the
first pipeline stage fails, make wasn't catching it).

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator