setup sbt in circle config

Author: frantuma

circle.yml

@@ -15,12 +15,15 @@ dependencies:
   cache_directories:
     - "~/.m2"
     - "~/.sbt"
+    - "~/.ivy2"
 
   pre:
     - sudo add-apt-repository ppa:duggan/bats --yes
     - sudo apt-get update -qq
     - sudo apt-get install -qq bats
     - sudo apt-get install -qq curl
+    - wget -q https://dl.bintray.com/sbt/debian/sbt-0.13.15.deb
+    - sudo dpkg -i sbt-0.13.15.deb
     # to run petstore server locally via docker
     - docker pull swaggerapi/petstore
     - docker run -d -e SWAGGER_HOST=http://petstore.swagger.io -e SWAGGER_BASE_PATH=/v2 -p 80:8080 swaggerapi/petstore