Advance Security 

This PR aims to:
- add remember me login gunctionality

Notes:
- to override the `default FOSUserBundle Templates`you need to:
- create a new view
- include the following code in your Bundle class:
```
	public function getParent()
	{
		return 'FOSUserBundle';
	}
```

- to activate a new user and promote a new role:
``` 
   php app/console fos:user:create test test@test test
   php app/console fos:user:activate test
   php app/console fos:user:promote test ROLE_ADMIN_LAB
```