add ks-iam and ks-apigateway

Signed-off-by: hongming <talonwan@yunify.com>

.travis.yml

@@ -17,9 +17,11 @@ before_install:
 before_script:
   - dep ensure -v
   - docker --version
+  - git clone --single-branch -b v0.11.4 -q https://github.com/mholt/caddy $GOPATH/src/github.com/mholt/caddy
 
 script:
-  - make all && make test
+  - make test
+  - bash hack/docker_build.sh
 
 deploy:
   skip_cleanup: true