chore(package): update eslint to version 5.0.0

Closes #40

Author: greenkeeper[bot]

package.json

@@ -31,7 +31,7 @@
 		"owe-core": "0.11.x"
 	},
 	"devDependencies": {
-		"eslint": "4.18.1",
+		"eslint": "5.0.0",
 		"eslint-config-cortys": "1.x",
 		"chai": "4.1.2",
 		"chai-as-promised": "7.1.1",