Text encoding issues.

Exception in request:
Traceback (most recent call last):
  File "/base/python_lib/versions/1/django/core/handlers/base.py", line 77, in get_response
    response = callback(request, *callback_args, **callback_kwargs)
  File "/base/data/home/apps/meow/1.31/views/main.py", line 28, in inner
    return func(request, *args, **kwargs)
  File "/base/data/home/apps/meow/1.31/views/actions.py", line 34, in post
    message.put()
  File "/base/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 615, in put
    self._populate_internal_entity()
  File "/base/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 597, in _populate_internal_entity
    self._entity = self._populate_entity(_entity_class=_entity_class)
  File "/base/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 645, in _populate_entity
    self._to_entity(entity)
  File "/base/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 587, in _to_entity
    entity[prop.name] = datastore_value
  File "/base/python_lib/versions/1/google/appengine/api/datastore.py", line 343, in __setitem__
    datastore_types.ToPropertyPb(name, value)
  File "/base/python_lib/versions/1/google/appengine/api/datastore_types.py", line 977, in ToPropertyPb
    pbvalue.set_stringvalue(unicode(v).encode('utf-8'))
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 0: ordinal not in range(128)