[710] Routes generation params and redirects

Hi, guys!

I have two issues with routes: 1. All parameters generated as optional, even with index.vue files pages: generated routes:

2. extendRoutes option lead to empty import I'm trying to add redirects like: and generated routes.js looks like:

const _29172c1a = () => import('' /* webpackChunkName: "pages/" */)
...
{
	path: "/icon",
	component: _29172c1a
},
{
	path: "/icon/new-icons",
	component: _29172c1a
}

and when I use 'npm run dev' I got:

This dependency was not found:
*  in ./.nuxt/router.js
To install it, you can run: npm install --save

Using nuxt 0.10.7