added categoriesContainer

![screenshot from 2014-10-23 02 16 03](https://cloud.githubusercontent.com/assets/8659238/4746142/08b4bc38-5a45-11e4-921b-d6e5a3e116eb.png)
- **Created folder in:**
	"./softserve/yunakQuiz/source/ang-app/app/modules"

- **folder "categories-container"** and in this folder added 2 files **"categories-container.html"** - template and **"categories-container.js"**  -controller for templates

- **Created folder in:**
	"./softserve/yunakQuiz/source/data-service"
- **folder "lib"** and added 2 files named **"getAllCat.rb"** - contain module which proccess requests to DB by Categories
**"searchQuizzes.rb"** - contain module which proccess requests to DB by Quizzes

----------
**Modified files:**
<br>
1. **"index.html"** - added library path
<br>
2. **"app.js"** - registered new module
<br>
3. **"app.rb"** - added description for request/respond
<br>
4. **"app.css"** - added some styles
instead of searching in loop make link array above, like:

``` 
var subCatById = {};
angular.forEach(subCat, function(cat){
  var subCatById[cat[key].category_id] = subCat[key]; 
});
```
and then:
``` subCatById[catgory_id] ```