Updated for Laravel 7 and 8
Add support for PHP 7.3, 7.4, 8.0
Removed support for Laravel 5.5, 5.6, 5.7, 5.8
Removed support for PHP 7.0, 7.1
Removed deprecated Raven handler, use sentry/sentry 3.x and their Sentry\Monolog\Handler instead
Removed deprecated HipChat handler, migrate to Slack and use SlackWebhookHandler or SlackHandler instead