remove/update old text about versions and program name

setup.py

@@ -4,13 +4,10 @@
 import os
 import sys
 
-# NOTE: This file must remain Python 2 compatible for the foreseeable future,
-# to ensure that we error out properly for people with outdated setuptools
-# and/or pip.
 min_version = (3, 8)
 if sys.version_info < min_version:
     error = """
-mxtools does not support Python {0}.{1}.
+conftrak does not support Python {0}.{1}.
 Python {2}.{3} and above is required. Check your Python version like so:
 
 python3 --version