Correct package paths in TravisCI

.travis.yml

@@ -19,23 +19,30 @@ before_install:
   - go get github.com/dghubble/sling
   - go get github.com/go-resty/resty
 install:
+  # Make sure externally referenced packages are go-gettable.
   - go get github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway
+  - go get github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger
   - go get github.com/grpc-ecosystem/grpc-gateway/runtime
-  - go get github.com/grpc-ecosystem/grpc-gateway/examples
-  - go get github.com/grpc-ecosystem/grpc-gateway/examples/server
+  - go get github.com/grpc-ecosystem/grpc-gateway/examples/cmd/example-grpc-server
+  - go get github.com/grpc-ecosystem/grpc-gateway/examples/cmd/example-gateway-server
 before_script:
   - sh -c 'cd examples/browser && npm install'
 script:
   - if [ "${USE_BAZEL}" = true ]; then ./.travis/bazel-build.sh; fi
   - if [ "${USE_BAZEL}" = true ]; then ./.travis/bazel-test.sh; fi
+
+  # Make sure examples of generated files are up-to-date
   - if [ -z "${USE_BAZEL}" ]; then make realclean && make examples SWAGGER_CODEGEN="java -jar $HOME/local/swagger-codegen-cli.jar"; fi
   - if [ -z "${USE_BAZEL}" ] && (go version | grep -q "${GO_VERSION_TO_DIFF_TEST}") && [ -z "${GATEWAY_PLUGIN_FLAGS}" ]; then test -z "$(git status --porcelain)" || (git status; git diff; exit 1); fi
+
+  # Unit tests, integration tests and code health checks
   - if [ -z "${USE_BAZEL}" ]; then env GLOG_logtostderr=1 go test -race -v github.com/grpc-ecosystem/grpc-gateway/...; fi
   - if [ -z "${USE_BAZEL}" ]; then make lint; fi
   - if [ -z "${USE_BAZEL}" ]; then sh -c 'cd examples/browser && node ./node_modules/gulp/bin/gulp'; fi
   - if (go version | grep -q "${GO_VERSION_TO_DIFF_TEST}") && [ -z "${GATEWAY_PLUGIN_FLAGS}" ]; then env GLOG_logtostderr=1 ./bin/coverage; fi
 after_success:
   - bash <(curl -s https://codecov.io/bash)
+
 env:
   global:
     - "PATH=$PATH:$HOME/local/bin"