Merge remote-tracking branch 'origin/master'

fix typo

remove post install just in case it causes problems

Merge pull request #3738 from laravel/backport

[5.1] Backport various changes

Merge pull request #3733 from jcxm360/patch-1

Update Kernel.php

Merge pull request #3699 from barryvdh/patch-1

[5.2] Use ComposerScripts

update default routes file

Merge pull request #3687 from barryvdh/patch-1

Remove pre-update-cmd

add to gitignore

update dependencies