Coverage for psiphon package only

Cannot use test profile flag with multiple packages

.travis.yml

@@ -8,7 +8,9 @@ addons:
 install:
 - go get -t -d -v ./... && go build -v ./...
 script:
-- go test -v -covermode=count -coverprofile=coverage.out ./...
+- go test -v ./...
+- cd psiphon
+- go test -v -covermode=count -coverprofile=coverage.out
 - $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci -repotoken $COVERALLS_TOKEN
 before_install:
 - go get github.com/axw/gocov/gocov