apachedex: Tolerate non-ascii URLs.

Otherwise, if `url` contains non-ascii chars, startswith will fail with
an error like:
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 84: ordinal not in range(128)
becasue 'http' is unicode. So byte-ify it to avoid this transcoding.

apachedex/__init__.py

@@ -1556,7 +1556,7 @@ def main():
         no_url_lines += 1
         continue
       url = url_match.group('url')
-      if url.startswith('http'):
+      if url.startswith(b'http'):
         url = splithost(splittype(url)[1])[1]
       url = get_url_prefix(match, url)
       for site, prefix_match, action in site_list: