Ember - donation system, bans, loading screen & landing/index page

• Added a community section to the landing page (player & member statistics)
• Fixed redundant DB migration for fresh 2.1.6 installations

Files modified:

• web/app/Controllers/MigrationController.php
• web/app/Controllers/PagesController.php
• web/resources/lang/en.php
• web/resources/views/admin/misc.twig
• web/resources/views/landing.twig