Switch Jscs hook to use extract_messages

Change-Id: Ie27e6e7e960a172626b8a8a851fc711a9011a11f
Reviewed-on: http://gerrit.causes.com/44907
Tested-by: jenkins <jenkins@brigade.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>
Switch Jsxcs hook to use extract_messages

Change-Id: I707995644849c93f1b87a793896f7c71dd7dea98
Reviewed-on: http://gerrit.causes.com/44908
Tested-by: jenkins <jenkins@brigade.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>