Fix dependency

With this new 5.0 branch, there is some issues on composer install. Either keep a 4.3.* branch or change this ?
Merge pull request #3011 from tyloo/patch-1

Fix dependency
Revert "ToRevert: Track master"

This reverts commit ad36bda193e9e5c4c5c2beaf646b1b98c5488764.
Merge branch 'develop' of https://github.com/laravel/laravel