add back the tests

.travis.yml

@@ -40,10 +40,10 @@ before_script:
   - make vendor
 script:
   # Test Go and Docker.
-#  - make test
-#  - make docker
+  - make test
+  - make docker
   # Test built docker image.
-#  - docker run $BINARY -v 2>&1 | grep -Eq "^$BINARY v$VERSION"
+  - docker run $BINARY -v 2>&1 | grep -Eq "^$BINARY v$VERSION"
   # Build everything
   - SIGNING_KEY=616A79D1ADA2F0FD6F5E2A9166AB29F0EC5718FF rvm 2.0.0 do make release
 after_success: