[ZF3][Behat] fixed background script to use email in login form
[ZF3][Behat] fixed background script to use email in login form

cross-solution/YAWIK,cross-solution/YAWIK,cross-solution/YAWIK,kilip/YAWIK,kilip/YAWIK,kilip/YAWIK,kilip/YAWIK,cross-solution/YAWIK