New features

• Added descriptive text before list of errors.
• Changed name of validation function

Applied:
2454869 - Add base_path() to mapPath
https://www.drupal.org/node/2454869

2510172 - Adding a selected-state class
https://www.drupal.org/node/2510172

This is a major upgrade and presents a stable API, pending feedback.

Major changes

The Views used by the module no longer use menu callbacks and page displays. Instead, the module's router controls four separate content pages. The content of those pages can be configured, so that Views can be swapped out when new modules are introduced (like content_translation) without having the edit the core views directly.

Initial development release.

Added tests.

Moved config page to its own page and added permission for this as well so you don't have to give full admin rights to use this.