updates module xml version and adds change log entry

mxmlupdate.py

#!/usr/bin/env python

import sys
import xml.etree.ElementTree as ET
from distutils.version import LooseVersion

bumped = False

tree = ET.parse(sys.argv[1])
root = tree.getroot()
elems = tree.findall('version');
for elem in elems:
  if(LooseVersion(elem.text) < LooseVersion('13.0.2')):
     elem.text = '13.0.2'
     bumped = True;
if(bumped):
    elems = tree.findall('changelog');
    for elem in elems:
        elem.text = '\n\t\t*13.0.2* Version bump Beta' + elem.text
    tree.write(sys.argv[1])
else:
    print("File not updated")