The 4.6 sample needs an update to use RBAC, or it won't work when people upgrade to 5.0.
For each try-cb-xxx repo update doing the following:
- Make a 5.0 branch
- Update 5.0 branch with authentication changes
- Put a note in the 4.6 README that points to the 5.0 branch to get latest changes
- Master branch will remain working for 4.6 until 5.0 server launches, then we make a 4.6 branch and merge 5.0 into master.