Minor fixes, Sponsors, improving UI

- [x] Minor fixes according to [insight analysis tool](https://insight.sensiolabs.com/projects/0ede2480-a304-4bab-9033-d6261450cf54/analyses/2) 

	Logging should not be verbose in production 2
	Symfony2 secret should be changed
	Sensitive data should not be present in non-parameter configuration files
	Symfony controller action method should not be too long
	Web bundles/ folder should not be present in repository
	Strong password hashing algorithm should be used for password
	Symfony applications should not contain a config.php file
	First level service should not be present in global configuration files
	Version of dependencies should be fixed
	Object parameters should be type hinted
	Unused method, property, variable or parameter
	Unused use statement should be avoided
	Default session cookie's name should be changed 


- [x]  Added Sponsors section (Ideato, Tvision, Godaddy)

- [x]  fix #77, fix #72 tickets

screenshot:
![image](https://f.cloud.github.com/assets/530406/1056673/e12857d4-115b-11e3-8670-e77ecf1da7b3.png)