Merge pull request laravel#44 from laravel/psysh-update

Allow psysh 0.9

Make sure config merging takes place

formatting

allow symfony 4

Merge pull request laravel#20 from henriquebremenkanp/patch-1

Replace fire() with handle() for 5.5 compatibility

update composer for package discover

Merge pull request laravel#6 from lucasmichot/feature/master/missing-…

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