Update conf file with icehouse release changes

Sync api-paste.ini with ssl support
Sync heat.conf with comment changes and additional sections.

Change-Id: Icff75c6737f37df8466cf2b9d591483d8f917509
Closes-Bug: 1300320
Use get_secret instead of secret

The new get_secret method allows the 'secrets' databag to be renamed,
just like all other databags.

Change-Id: Ic8be5d19a112d78e22716c0cd571efc7186ac9ce
Related-Bug: #1288784
Merge "Update conf file with icehouse release changes"
Use platform_family instead of platform

This will allow the ibm_powerkvm platform to be recognized and will
simplify uses of multiple platforms from the same family.

Change-Id: Iebf2aad9f3b4649fb5c27d2fc93ee60c67e42737
Partially-Implements: blueprint add-ibm-powerkvm-enablement
Implements: blueprint platform-family
Remove policy json file

Remove the policy.json template, as they contain no templated variables.
This would allow use of the policy.json files provided via the package,
and decrease the need to sync them with upstream

Change-Id: I2e4e3b5ed25b1449678e33dbd4ea45fcb6cac946
Implements: blueprint remove-policy-templates
Add notification attributes

Add attrs related for notification
Add tests

Change-Id: I559d4d610cd63a78e783fb57922012cf97ec6ad6
Closes-Bug: #1306703