chore(package): update eslint-config-cortys to version 2.1.1

Closes #37

Author: greenkeeper[bot]

package.json

@@ -34,7 +34,7 @@
 		"owe-core": "0.11.x",
 		"owe.js": "0.11.x",
 		"eslint": "4.19.1",
-		"eslint-config-cortys": "1.x",
+		"eslint-config-cortys": "^2.1.1",
 		"chai": "4.1.2",
 		"chai-as-promised": "7.1.1",
 		"express": "latest",