The problem has been on clusters with public IP addresses on the nodes. The
added policy will explicitly allow connecting to cluster ingress service.

Needed for testing from within notebooks and for collaborative feature.

* ansible linting
* ansible block error handling
* YAML linting
* editorconfig file and formatting

upstreamed rclone fix

Adding setting to enable/disable RTC mode

Adding introspect URL for latest EGI hub introspect PR