This commit moves most controller logic onto Services. Services are part of the Service-Repository pattern. The models act as repositories.
Services are easily testable and are needed for the upcoming API, in order to avoid duplicated code and to maintain a single source of "truth".
The User, Vacancy and Vote controllers still need their logic moved onto services.
Tooltips also added, as well as a general configuration file for Mojang Status URL.
Relationships were also added between forms and Vacancies.
Status verification for the dashboard was moved to a Service Provider, where it adds log entries when cache expires.
Authentication controllers were also updated to reflect the new dashboard URL.
