Rename cache expiration config fields in controllers.

controllers/controller.go

@@ -79,7 +79,7 @@ func (t *Controller) cachePage(c echo.Context, p Page, html *bytes.Buffer) {
 	}
 
 	if p.Cache.MaxAge == 0 {
-		p.Cache.MaxAge = t.Container.Config.Cache.MaxAge.Page
+		p.Cache.MaxAge = t.Container.Config.Cache.Expiration.Page
 	}
 
 	key := c.Request().URL.String()

controllers/router.go

@@ -34,7 +34,7 @@ func BuildRouter(c *container.Container) {
 	// Static files with proper cache control
 	// funcmap.File() should be used in templates to append a cache key to the URL in order to break cache
 	// after each server restart
-	c.Web.Group("", middleware.CacheControl(c.Config.Cache.MaxAge.StaticFile)).
+	c.Web.Group("", middleware.CacheControl(c.Config.Cache.Expiration.StaticFile)).
 		Static(config.StaticPrefix, config.StaticDir)
 
 	// Middleware