Switched require to require_once to avoid "Cannot reload class" errors when multiple autoloaders are registered.
Switched require to require_once to avoid "Cannot reload class" errors when multiple autoloaders are registered.

nasrulhazim/php-activerecord,jpfuentes2/php-activerecord,onemightyroar/php-activerecord,fetch/php-activerecord,bparks/php-activerecord,shmax/php-activerecord,Rican7/php-activerecord,thijsw/php-activerecord