#322 UpdateTask._generate_difference_messages generates a specifically ASCII value

[Adam Tauno Williams]

generatedifferencemessages is creating a specifically ASCII string

2016-09-06T14:05:44:pathobject.xmlrpc:ERROR: 'ascii' codec can't encode character u'\xae' in position 229: ordinal not in range(128)
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.49rc105-py2.6.egg/coils/net/xmlrpc.py", line 181, in do_POST
    result = apply(call, parameters)
  File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.49rc105-py2.6.egg/coils/protocol/rpc2/root.py", line 213, in putObject
    self.context, self.api, payload,
  File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.49rc105-py2.6.egg/coils/protocol/rpc2/root.py", line 203, in process_put_object_payload
    )(payload, flags, )
  File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.49rc105-py2.6.egg/coils/net/zogi/api.py", line 1349, in put_task
    id=object_id,
  File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.49rc105-py2.6.egg/coils/core/context.py", line 629, in run_command
    command.run()
  File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.49rc105-py2.6.egg/coils/logic/task/update_task.py", line 98, in run
    self._generate_difference_messages()
  File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.49rc105-py2.6.egg/coils/logic/task/update_task.py", line 91, in _generate_difference_messages
    to_value_text,
UnicodeEncodeError: 'ascii' codec can't encode character u'\xae' in position 229: ordinal not in range(128)
2016-09-06T14:05:44:pathobject.xmlrpc:DEBUG: XML-RPC processing complete