Ignore commit when parsing a document

Closes #4

scripts/unlizeXml.py

 #!/bin/env python3
 
-from lxml import etree
+from lxml import etree, objectify
 import requests
 import click
 import tempfile
@@ -125,7 +125,8 @@ def unl2dot(text, path):
               help='Path of the unltools jar')
 def unlizeXml(input, output, lang, dry_run, svg, unltools_path):
 
-    doc = etree.parse(input)
+    parser = etree.XMLParser(remove_comments=True)
+    doc = objectify.parse(input, parser=parser)
     remove_namespace(doc)
     tags = ['title', 'text_body', 'term', 'meaning']
     for t in tags: