I opened a PR to remove the "namespace" property from .wskprops which can cause confusing behavior if a properties file includes this value but the api key is for a different namespace.
This property is a relic from a time when an api key allowed access to more than one namespace but this has been a 1-1 bijection for well over two years now. So this PR ignores the value if it is present in the properties file and you can no longer set/unset it. https://github.com/apache/incubator-openwhisk-cli/pull/434 -r
