fix travis setup for docker (#150)

diff --git a/.travis.yml b/.travis.yml
index 4d773a1..7f977bb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,15 @@
 # A Travis CI configuration file.
 
 sudo: required
-
+group: deprecated-2017Q3
 language: scala
-scala:
-   - 2.11.6
+services:
+- docker
+
 env:
   global:
     - secure: "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"
     - secure: "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"
-services:
-  - docker
 
 before_install:
   - ./tools/travis/setup.sh
@@ -31,4 +30,4 @@
     script: ./tools/travis/deploy.sh openwhisk cloudantprovider $TRAVIS_TAG
     on:
       tags: true
-      all_branches: true
\ No newline at end of file
+      all_branches: true