Address InsecureRequestWarning for THREDDS reinit

[sashakames]

/export/ames4/.conda/envs/pub-py3/lib/python3.7/site-packages/urllib3/connectionpool.py:1004: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
InsecureRequestWarning,

(1) remove verify=False as the default behavior. This will break test installations.
(2) Add an option to enable insecure operation for test publishing, which will allow for verify=False.