Work with modular project

Prosess

```
project
|- module1
|- locals
|- en.po
|- fr.po
|- module2
|- locals
|- en.po
|- fr.po
```

Create

```
compiled
|- module1
|- locals
|- en.json
|- fr.json
|- module2
|- locals
|- en.json
|- fr.json
```

Api example

``` javascript
'compiled/*/locals' : ['project/*/locals/*.po']
```

Separate json create for each module automatically. It will be useful for big modular project.