* fix(serving): Remove hardcoded GVK and look it up from schema
Fixes#133.
* chore(serving): Add test for "WaitForService()"
* refactor(service): Add listRoutes() to client + generic way for list options
* chore(serving): Fixing rebase conflicts
* Set current namespace from kubeconfig by default
Currently kn command does not pick up namespace from kubeconfig but
hardcorded default namespace.
This patch fixes to get namespace from kubeconfig.
Fixes https://github.com/knative/client/issues/7
* Use NamespaceFactory to get current namespace
* Update unit tests
* Add nil check for ClientConfig