fix(controller): return valid json structure
ref(controller): replace read from stdin to use parameters and allways return a value to allow python to parse the output
>>> from ast import literal_eval
>>>
>>> testEval = literal_eval('{ "web": 1, "cron": 1 }')
>>> print testEval
{'cron': 1, 'web': 1}
>>> type(testEval)
<type 'dict'>
>>> testEval = literal_eval('None')
>>> print testEval
None
>>> type(testEval)
<type 'NoneType'>