log all tags starting with error- at the error level, add a warning level handling

django_journal/__init__.py

@@ -39,8 +39,10 @@ def record(tag, template, using=None, **kwargs):
                 'Missing variable for the template message', template, e)
     try:
         logger = logging.getLogger('django.journal.%s' % tag)
-        if tag.name == 'error':
+        if tag.name == 'error' or tag.name.startswith('error-'):
             logger.error(message)
+        elif tag.name == 'warning' or tag.name.startswith('warning-'):
+            logger.warning(message)
         else:
             logger.info(message)
     except: