German Language File updatet
Merge pull request #354 from FrozenNode/dev

Merge 4.7.1 into master
Merge pull request #350 from mnewmedia/patch-1

German Language File updatet
Fixing issue where user not redirected to page they wanted to access after logging in.
Urgent fix to prevent error with latest laravel

Currently throws ErrorException
Declaration of Frozennode\Administrator\Validator::setRules() should be compatible with Illuminate\Validation\Validator::setRules(array $rules)
adding a contributing.md
Merge branch 'patch-1' of https://github.com/neilcrookes/Laravel-Administrator into dev
Merge branch 'patch-2' of https://github.com/neilcrookes/Laravel-Administrator into dev