updated JSCS dependency to latest 2.7.0 and fixed relative path issue

tooling/package.json

 {
   "private": true,
   "scripts": {
-    "lint": "jscs"
+    "lint": "pushd .. && jscs",
+    "postlint": "popd"
   },
   "dependencies": {
-    "jscs": "^1.13.1"
+    "jscs": "^2.7.0"
   }
 }

tooling/run.sh

 #!/bin/bash
 
 PATHS=""
-EXAMPLES_DIR="../examples/"
+EXAMPLES_DIR="examples/"
 
 for arg in "$@"
 do
@@ -13,4 +13,4 @@ esac
 done
 
 npm i && \
-eval "npm run lint -- -c ../.jscsrc $PATHS ../tests/"
+eval "npm run lint -- $PATHS tests/"