There are a number of changes in TFS 15 RC1, and one I really like is the HTTPS configuration.
When you configure the Application Tier you can now select the bindings you want:
Clicking on the dropdown shows all the configurations – HTTP, HTTPS or both:
with the possibility of selecting the certificate straight from the wizard!
You can also change the bindings, the virtual directory and the URL if needed:
It is just a convenience, true, but it is really handy to use instead of doing this