THRIFT-4509: add jslint and fix build script output
diff --git a/lib/js/package.json b/lib/js/package.json
index 5da7822..f3ed3e1 100644
--- a/lib/js/package.json
+++ b/lib/js/package.json
@@ -8,8 +8,9 @@
     "grunt-contrib-jshint": "^1.0.0",
     "grunt-contrib-qunit": "^1.2.0",
     "grunt-contrib-uglify": "^1.0.1",
-    "grunt-jsdoc": "^2.2.0",
-    "grunt-shell-spawn": "^0.3.10"
+    "grunt-jsdoc": "^2.2.1",
+    "grunt-shell-spawn": "^0.3.10",
+    "jslint": "^0.12.0"
   },
   "dependencies": {
     "jsdoc": "^3.5.5",