1. Successfully added extensions: user & rights
2. Implemented Restful functions
	http://localhost/yii_restfulyii/index.php/api/register/user
		{
		    "username": "abc", "email":"abc@gmail.com", "password": "1234", "firstname": "first", "lastname": "last"
		}
	http://localhost/yii_restfulyii/index.php/api/login/user
		Headers:
			X-REST-USERNAME: webmaster@example.com
			X-REST-PASSWORD: 1234
			Content-Type: Application/json
		Return:
			{
				success: true
				message: "Login Successful"
				data: {
					token: "CXj0qZALC90nIINNR6CNTtUze"
					expire: 1413797849
				}
			}

	http://localhost/yii_restfulyii/index.php/api/post/1
		GET
		Header:
			X-REST-TOKEN: CXj0qZALC90nIINNR6CNTtUze
			Content-Type: Application/json