Check if the current version of the library is outdated.

def _check_update_(self):
        """Check if the current version of the library is outdated."""
        try:
            data = requests.get("https://pypi.python.org/pypi/jira/json", timeout=2.001).json()

            released_version = data['info']['version']
            if parse_version(released_version) > parse_version(__version__):
                warnings.warn(
                    "You are running an outdated version of JIRA Python %s. Current version is %s. Do not file any bugs against older versions." % (
                        __version__, released_version))
        except requests.RequestException:
            pass
        except Exception as e:
            logging.warning(e)