travis: Add cdsapi token (#85)

Token and url are expected to be configured as an environment variable
in travis.

Author: coroa

.travis.yml

@@ -24,8 +24,11 @@ install:
 #   - "sh -e /etc/init.d/xvfb start"
 #   - sleep 3  # give xvfb some time to start
 
+before_script:
+  - 'echo -ne "url: ${CDSAPI_URL}\nkey: ${CDSAPI_TOKEN}\n" > ~/.cdsapirc'
+
 script:
-    - py.test
+  - py.test
 
 # deploy new tags to pypi automatically
 deploy: