Fix for PHP7
Fix for PHP7

Fixes `Whoops\Exception\ErrorException: Uncaught TypeError: Argument 1 passed to Whoops\Exception\Inspector::getTrace() must be an instance of Exception, instance of Error given`
Vmak11/whoops,michabbb-backup/whoops,filp/whoops,staabm/whoops,staabm/whoops,michabbb-backup/whoops,filp/whoops,Vmak11/whoops