Page de contribution spéciale, amélioration sur les recherches, ajout de tests automatiques et optimisation de code.

• Prefilled membership completion page #107
• Adapt contribution create require campaign #103
• Adapt for basical contact search form #103
• Advanced search blocked if no group selected
• Link to syndicate's page from front-end dashboard #104

Technical stuff:

• Introduce automated tests with Codeception
• Update WP_Reporting to 1.5 and manage JS
• Add WP_Reporting listeners
• Refactor: move non hook or civix functions into utils.php
• use cartable_get_file_path() instead of hard coded paths