[misc] use the local mocha instead the global

Author: cronopio

package.json

@@ -20,8 +20,8 @@
   },
   "scripts"        : {
     "blanket"            : { "pattern": "caronte/lib" },
-    "test"               : "mocha -R landing test/*-test.js",
-    "test-cov"           : "mocha --require blanket -R html-cov > cov/coverage.html"
+    "test"               : "./node_modules/.bin/mocha -R landing test/*-test.js",
+    "test-cov"           : "./node_modules/.bin/mocha --require blanket -R html-cov > cov/coverage.html"
   },
 
   "engines"        : {