Allows running when there is no internet.

[stefanoborini]

Introduces a small change in the configuration so that we can run when there's only loopback.

[codecov-io]

Codecov Report

Merging #409 into master will increase coverage by 0.39%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #409      +/-   ##
==========================================
+ Coverage   95.23%   95.62%   +0.39%     
==========================================
  Files          96       96              
  Lines        4095     4439     +344     
  Branches      255      285      +30     
==========================================
+ Hits         3900     4245     +345     
- Misses        143      145       +2     
+ Partials       52       49       -3

Impacted Files	Coverage Δ
...moteappmanager/handlers/tests/test_home_handler.py	100% <0%> (ø)	⬆️
remoteappmanager/tests/test_application.py	100% <0%> (ø)	⬆️
.../handlers/tests/test_register_container_handler.py	100% <0%> (ø)	⬆️
...moteappmanager/handlers/tests/test_base_handler.py	100% <0%> (ø)	⬆️
...anager/handlers/admin/tests/test_admin_handlers.py	100% <0%> (ø)	⬆️
.../auth/tests/test_github_whitelist_authenticator.py	100% <0%> (ø)	⬆️
remoteappmanager/db/tests/test_orm.py	100% <0%> (ø)	⬆️
remoteappmanager/jupyterhub/tests/test_spawners.py	93.67% <0%> (+1.27%)	⬆️
...eappmanager/tests/mocking/virtual/docker_client.py	97% <0%> (+4.08%)	⬆️

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