benoitc/gaffer — pull request #14 by blackwithwhite666 (2013-01-10 11:54:31+00:00)
Title: Issue with custom_channels and http handlers

After my previous pull request an error appear when we try to serialize dictionary returned by `Manager.get_process_info`.

```
Traceback (most recent call last):
File "/home/blackwithwhite/Work/ged-soa/apps/local/lib/python2.7/site-packages/tornado/web.py", line 1042, in _execute
getattr(self, self.request.method.lower())(*args, **kwargs)
File "/home/blackwithwhite/Work/ged-soa/apps/local/lib/python2.7/site-packages/gaffer/http/processes.py", line 161, in get
self.write(info)
File "/home/blackwithwhite/Work/ged-soa/apps/local/lib/python2.7/site-packages/tornado/web.py", line 493, in write
chunk = escape.json_encode(chunk)
File "/home/blackwithwhite/Work/ged-soa/apps/local/lib/python2.7/site-packages/tornado/escape.py", line 90, in json_encode
return _json_encode(recursive_unicode(value)).replace("