Composer -o

Composer allows us to optimize the autoloader using the --optimize flag or shortly -o.

Require laravel-mix v0.*

Possible URL fix?

The .js files should be vendored too

Some projects can present JS as the primary language, even clearly being a Laravel/PHP project. With this, that problem can be avoided.

unindex token

Mailtrap now reference smtp. for their host value.

Adds unix_socket to config/database.php for consistency

For the mysql driver only (as this only applies to mysql) add the "socket" configuration parameter and corresponding environment variable.

common js style

Upgrade laravel-mix to 0.8.3

Fix cross-env binary

[5.4] Use consistent config paths

[5.4] Fix cross-env bin path

[5.4] Update description of filled rule

`filled` isn't really required. It just implies that it needs a value.

Refactor npm scripts

Per #4147, this adds a new `npm run watch-poll` command, and dries up some of those long repetitive commands.

Change hard-coded '/login' param to named route