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bootstrap/paths.php disappeared

Fixing php artisan serve functionality
minor spelling/grammar corrections
Bind the kernels as singletons.
Updated CSRF middleware reference
Update RouteServiceProvider.php

Removed the CSRF provider as it is specified in the Kernel.
Changing default routing setup.
Remove extra line.
Tweak default request setup.
Working on structure.
Remove scan arrays.
new logout-method naming
Add logs directory.
Working on logging.
Working on exception handling. WIP.
Remove exception handler. Move to core.
Prevent TokenMismatchException for HTTP OPTIONS requests

`OPTIONS` HTTP requests should be treated in the same way than `GET` requests by the `VerifyCsrfToken` middleware. Otherwise, an exception is thrown, thus preventing any `OPTIONS` route to work.
Merge pull request #3114 from matism/develop

new logout-method naming
Merge pull request #3106 from hannesvdvreken/patch-2

fix php artisan serve functionality with hardcoded values
Stub out an app service provider.