Occasional NEON API Errors

[scottyhq]

Running tests locally, I occasionally encounter the following failure on the neon search. Rerunning and it completes without issue,,, so just noting for future reference.

coincident/tests/test_search.py

Line 385 in 67a837c

def test_neon_search():

E requests.exceptions.ConnectionError: HTTPConnectionPool(host='data.neonscience.org', port=80): Max retries exceeded with url: /api/v0/sites (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x1465dd280>: Failed to establish a new connection: [Errno 12] Cannot allocate memory'))

`