[CORE]

1. Modified loading of core classes [app/bootstrap.php]
2. Added constants TEMPLATE (used for Views class) and LANGUAGE (used
for Translation class) [app/config.php]
3. Modified multilanguage system [app/core/Translation]
4. Modified using of multilanguage system (modified initialization of
controllers, models, etc.)
5. Fixed and added documentation comments for classes
6. Modified Router::notFound404() - deleted HTTP header "404 Not Found"
[app/core/Router.php]
7. Added full template system - now you can use "main template" and
views separately [app/core/Views]
8. Changed getRaceList() function - now html-code generation moved into
view 'user/register' with foreach() [app/models/model_user.php]
9. Added images and folders for them [app/views/images]