- Eliminates redundant/obsolete aliases.

- Use fully qualified class name as service name.
- Eliminate static factory.

- Use fully qualified class name as service name.
- Eliminate static factory.

- Eliminate static factories.
- Use fully qualified class names as service names.

- Eliminate static factory.
- Use fully qualified class name as service name.

- Move configuration to plugin manager.
- Use fully qualified class name as service name.
- Eliminate static factory.

- Eliminate static factory.
- Use fully qualified class name as service name.

- Update service names to fully qualified class names.

- Rename services.
- Move configuration into plugin manager.

- All files reported by licensecheck[https://metacpan.org/pod/App::Licensecheck] were fixed.

- Adjusted wiki links to point to latest URLs.
- Removed VuFind2 category name (use generic VuFind instead).

- Introduce DEFAULT_SEARCH_BACKEND constant.
- Deprecate now-redundant getResourceSource() record driver method.
- Implement upgrade functionality to adjust database.
- Resolves VUFIND-1139.

Includes integration test.

Resolves VUFIND-663.