Use oauth2 from google-auth (#16)

oauth2client is deprecated [1], use google-auth.

[1] https://github.com/google/oauth2client/releases (see Note)

Related-Issue: #275

Signed-off-by: Spyros Trigazis <spyridon.trigazis@cern.ch>

Author: strigazi

config/kube_config.py

@@ -19,7 +19,7 @@
 
 import urllib3
 import yaml
-from oauth2client.client import GoogleCredentials
+from google.oauth2.credentials import Credentials
 
 from kubernetes.client import ApiClient, ConfigurationObject, configuration