remove folders prior to go getting them
#!/bin/bash -e
./ci/install-protobuf.sh
+rm -rf $GOPATH/src/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway
go get -u github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway
+
+rm -rf $GOPATH/src/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger
go get -u github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger
rm -rf $GOPATH/src/github.com/golang/protobuf
