Add allow failures untill hhvm and 7.0 are fixed
Add allow failures untill hhvm and 7.0 are fixed

mikkpokk/date,GabrielApG/laravel-date,sonico999/laravel-date,kadirarlii/date,andhikamaheva/date,jenssegers/laravel-date,abhimanyusharma003/laravel-date,jenssegers/date,masterweb121/laravel-date,wfjsw/laravel-date