[zendframework/zf2#3705] Similar fix for Zend\Session
[zendframework/zf2#3705] Similar fix for Zend\Session

- ensure autoload.files is prepended with value of target-dir.

MadCat34/zend-session,oswaldderiemaecker/zend-session,Maks3w/zend-session,zendframework/zend-session