GEORGE TOWN: Teng Chang Yeow has produced documentary evidence that the DAP and PKR had reached an agreement with their Islamist party member, PAS, giving them the go-ahead to pursue an Islamic state agenda of their own.Teng, Penang Barisan Nasional and Gerakan chairman, said the document was signed by Guan Eng and PAS president Abdul Hadi Awang on polling day of the last general election on May 5, 2013.Due to…