Rename api_key to token

Author: romnnn

.travis.yml

@@ -18,7 +18,7 @@ jobs:
       go: master
       deploy:
         provider: releases
-        api_key:
+        token:
           secure: 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
         file: mongoimport
         skip_cleanup: true