func GlobalViewData(data ViewData) {
	views.Data(view.Data(data))
}
GlobalViewData adds global data for view templates.
package app
import (
	"html/template"
	"os"
	"strings"
	"github.com/gowww/static"
	"github.com/gowww/view"
)
const (
	viewsDir  = "views"
	staticDir = "static"
)
var (
	staticHandler = static.Handle("/"+staticDir+"/", staticDir)
	views         = view.New()
)
type ViewData map[string]interface{}
type ViewFuncs map[string]interface{}