Allow runtime configuration of Smarty via parameters in AgaviSmartyRenderer, closes #769
Fixed #771: AgaviSmartyRenderer should not set a Smarty plugins dir
merge 3d9718880bbd929e03df48092c5ac4af7886bfe4 to a164a5e7921675b0c6de0efec904334980e5bca3 (from 1.0)