Log Message:
py-genshi: updated to 0.7.1

0.7.1:
Add support for Python 3.5, 3.6 and 3.7.
Move to GitHub and Travis CI.
Add support for iterator arguments to _speedups Markup.join implementation so \ 
that it matches
the Python implementation.
Add HTML5 input placeholder attribute to list of translatable attributes.
Add missing boolean attributes to XHTML and HTML serializers.
Fix infinite recursion in template inlining.
Support slash escaped of CRLF newlines.
Disable the speedups C extension on CPython >= 3.3 since Genshi doesn't \ 
support the new Unicode
C API yet.
Fix handling of case where a translation has text after a closing tag.
Fix assert with side-effect in xi:fallback directive processing