Merge pull request #85 from oxyc/patch-1

Add support for composer/installers ^2.0

Author: petitphp

composer.json

@@ -20,7 +20,7 @@
 	"license":"GPL-3.0+",
 	"require": {
 		"php": ">=5.6.0",
-		"composer/installers": "~1.0"
+		"composer/installers": "^1.0|^2.0"
 	},
 	"require-dev": {
 		"dealerdirect/phpcodesniffer-composer-installer": "^0.7.1",