Allow backslashes in tales modifiers, so we can use namespaced classes.
Allow backslashes in tales modifiers, so we can use namespaced classes.

niterain/PHPTAL,potherca/PHPTAL,sasezaki/PHPTAL,sasezaki/PHPTAL,shivashanti/PHPTAL,hu2008yinxiang/PHPTAL,pornel/PHPTAL,cwisefool/PHPTAL,namesco/PHPTAL,phptal/PHPTAL,usox/PHPTAL,cwisefool/PHPTAL,niterain/PHPTAL,tchalvak/PHPTAL,cwisefool/PHPTAL,phptal/PHPTAL,hu2008yinxiang/PHPTAL,usox/PHPTAL,Drarok/PHPTAL,namesco/PHPTAL,fier/PHPTAL,hu2008yinxiang/PHPTAL,phptal/PHPTAL,dicexq/PHPTAL,potherca/PHPTAL,tchalvak/PHPTAL,Drarok/PHPTAL,usox/PHPTAL,fier/PHPTAL,shivashanti/PHPTAL,pornel/PHPTAL,dicexq/PHPTAL,pornel/PHPTAL,shivashanti/PHPTAL