Don't override the policy files in the local settings

The setting override currently doesn't add anything (the file names are
kept the same) but causes new files added upstream to be missed as the
entire POLICY_FILES dictionary is being overriden.

Change-Id: I2ce4cace705e89ef2fbb4a2f4e57c9074fc512ac
Closes-Bug: #1296636
Updated to match semver and release notes.

Before this update the Modulefile was not following semver in
relation to stable/havana, and the README files were not in sync.
This update introduces proper semver and consistency.

Change-Id: Ia0c2f0823de1766b3892a85112e2c89b82525ea5
Merge "Updated to match semver and release notes."
Merge "Don't override the policy files in the local settings"