Merge development branch.
Update validation.php

Language validation addition for https://github.com/laravel/framework/pull/4599
Merge pull request #2948 from TheShiftExchange/patch-1

Update validation language to include boolean
Update validation.php
added base project
added homestead config
removed homestead module
remove homestead module
added homestead git submodule
deleted git submodule
deleted homestead gitsubmodule
added homestead