Localhost checkbox to support secure clusters (https)

[mikkelhegn]

The "Connect to localhost" checkbox should support secure clusters locally as well, as SF will be transitioning to default secure clusters locally.

Two options as I see it (would love opinions on this :-))

1. Don't disable the text field after checking the box, and it's easy to add/remove the 's'
2. Probe https/http with short timeout to make the choice for the user

[rishirsinha]

If we create the cluster with the current user as one the AD identity allowed to connect it might simplify the workflow.