Fix contributor link.
Document array_short method.
Remove slash redirects because application handles this now

See commit https://github.com/laravel/laravel/commit/c7f889fe54d7c58244c575f76ff919c0f4ec15f7
Merge pull request #317 from driesvints/patch-4

Remove slash redirects because application handles this now
Merge branch 'master' of https://github.com/laravel/docs
update trans
Merge branch 'master' of https://github.com/saiwang/docs