Pattern in gluon/myregex.py must be compiled with MULTILINE option:
regex_extend = re.compile(\
'^\s*(?P<all>\{\{\s*extend\s+[\'"](?P<name>[^\'"]+)[\'"]\s*\}\})',
re.MULTILINE )
When {{extend '####'}} not in first line of file it doesn't be shown
in admin page.
