* Use wildcard matching for allowing reading any puritine click package paths
that have the name "puritine" anywhere in the Click package name. (LP: #1590453)
* Replace the scope settings approach to suppress display of apps with a scope
filter based approach. This provides a blacklist file for permanent suppression
and filters for user suppression.
* Provide a "Hidden X Apps" department for a place to store the apps hidden in
the main scope view, so they can be unhidden later if desired.
* Hide 'Help' by default for all containers. (LP: #1591511)
* Removed Settings. (LP: #1591494)
* Refactor Query class for consistent style and extract some functionality to
helper classes.
* Show a message when no apps are available due to filters or no apps installed.
(LP: #1589699)