Avoid autoloader false positives.
Avoid autoloader false positives.

Since it's not unlikely that `../../..` is a directory, we should also test
that the `autoload.php` file exists before we try to include it.

gnugat-forks/phpspec,sroze/phpspec,jon-acker/phpspec,nosun/phpspec,Harrisonbro/phpspec,danielkmariam/phpspec,gnugat-forks/phpspec,javi-dev/phpspec,rawkode/phpspec,ghamoron/phpspec,localheinz/phpspec,shanethehat/phpspec,shanethehat/phpspec,ghamoron/phpspec,nosun/phpspec,docteurklein/phpspec,Elfiggo/phpspec,docteurklein/phpspec,jon-acker/phpspec,sroze/phpspec,pamil/phpspec,Dragonrun1/phpspec,localheinz/phpspec,danielkmariam/phpspec,Dragonrun1/phpspec,iakio/phpspec,iakio/phpspec,ulabox/phpspec,ulabox/phpspec,Harrisonbro/phpspec,Elfiggo/phpspec,bestform/phpspec,javi-dev/phpspec,carlosV2/phpspec,pamil/phpspec,bestform/phpspec,rawkode/phpspec,carlosV2/phpspec