Added an admin form to show the currently available libraries and plugins.
Provided a new type of component: plugin. This lets you provide a configurable dependency override from the UI.
This release includes a MAJOR refactor of the component discovery system. Instead of relying on the ExtensionDiscovery system (*.info.yml), we now have a new discovery mechanism that is simpler to use and relies on *.component.yml files inside active modules and themes.
NOTE: this module is only looking inside "component" subfolders in your module/theme for the components (similar to templates). This is to make the discovery more performant and to enforce better organization.
A stable release! OMG! Actually there's nothing new here. This module is older than stable releases of modules, I think, so I'm finally getting around to tagging one in preparation for a D6 port. If you're already running the -dev release there is one minor bug fix in AHAH loading of blocks, but no other changes.
