Comment 4 for bug 1543118

To add a little more context: interfaces completely changed how security policy is done and snappy-debug was written to work with the old way. As such, changes need to be made to snapd so snappy-debug can obtain policy on the device and snappy-debug needs to handle complain-mode AppArmor denials and interfaces in general. Once that is done, it should move from old-security/security-template to simply using 'plugs/log-observe'.