python: Rename the P3 versions of {ashd,scgi}-wsgi so that they are separate.

diff --git a/python/ashd-wsgi b/python/ashd-wsgi3
similarity index 100%
rename from python/ashd-wsgi
rename to python/ashd-wsgi3

diff --git a/python/scgi-wsgi b/python/scgi-wsgi3
similarity index 100%
rename from python/scgi-wsgi
rename to python/scgi-wsgi3