subscribers in factory (#35)

when calling the Client::factory method, allow the config option 'subscribers' to attach
to the emitter

Author: Harry Bragg

Makefile

@@ -12,6 +12,9 @@ deps-js: ## Install javascript dependencies
 deps-php: ## Install php dependencies
 	@docker-compose run --rm composer install --prefer-dist
 
+deps-php-update: ## Update php dependencies
+	@docker-compose run --rm composer update --prefer-dist
+
 
 server-start: ## Start the test server
 	@docker-compose up -d node

composer.json

@@ -27,9 +27,9 @@
     },
     "require-dev": {
         "adlawson/timezone": "~1.0",
-        "squizlabs/php_codesniffer": "^2.9",
+        "squizlabs/php_codesniffer": "^3",
         "mockery/mockery": "~0.9",
         "phpunit/phpunit": "~4.3",
-        "graze/standards": "^1.0"
+        "graze/standards": "^2.0"
     }
 }