ZF2-385: Fix problem for predicates containing %
ZF2-385: Fix problem for predicates containing %

As the queries are built using sprintf format - having a where with a %
character is treated as an escape.  This "escapes" the escape -
replacing %'s as %% to print a single %;

zendframework/zend-db,mwillbanks/zend-db,MadCat34/zend-db,pikariop/zend-db,robertboloc/zend-db,mwillbanks/zend-db,Koopzington/zend-db,srayner/zend-db,turrsis/zend-db,settermjd/zend-db,srayner/zend-db,MadCat34/zend-db,robertboloc/zend-db,settermjd/zend-db,xorock/zend-db,jkhaled/zend-db,pikariop/zend-db,jkhaled/zend-db,xorock/zend-db,zendframework/zend-db,turrsis/zend-db,Koopzington/zend-db