Deprecationwarning on write to use write

[aecorn]

https://github.com/predicador37/pyjstat/blob/0e54b946960531e308e79b1ee16e5115b10f09ee/pyjstat/pyjstat.py#L866 write-function uses the from_json_stat function which throws a deprecation warning to use write instead... Would be nice to not be reprimanded for using the correct method.