Based on [mout's](https://github.com/mout/mout) implementation of merge

## Usage

```js
var merge = require('{%= name %}');

merge({a: {b: {c: 'c', d: 'd'}}}, {a: {b: {e: 'e', f: 'f'}}});
//=> { a: { b: { c: 'c', d: 'd', e: 'e', f: 'f' } } }
```