Sig_stat_pub.py is failing due to missing Socrautil Methods

[johnclary]

As noted here. Socratautil is missing needed methods, causing this script to fail.

Once socrautil is patched, we simply need to rebuild the /tdp docker image and deploy.

[johnclary]

Testing now with socratautil-dev v0.0.5. The method NotFoundError is resolved but now I'm getting a ValueError:

Traceback (most recent call last):
  File "sig_stat_pub.py", line 170, in <module>
    main()
  File "sig_stat_pub.py", line 160, in main
    replace=False,
  File "/usr/local/lib/python3.6/site-packages/socratautil/socratautil.py", line 65, in __init__
    self._handle_records()
  File "/usr/local/lib/python3.6/site-packages/socratautil/socratautil.py", line 74, in _handle_records
    self.records = mills_to_unix(self.records, self.date_fields)
  File "/usr/local/lib/python3.6/site-packages/datautil/datautil.py", line 126, in mills_to_unix
    raise ValueError
ValueError

I'm guessing this is related to new null value handling we implemented in socrautil v0.0.4. I apparently did not test this release enough. Sigh. Will have to revisit tomorrow :(