Update dependencies.

Author: bradyvercher

.gitignore

@@ -1,4 +1,5 @@
 .DS_Store
 node_modules
 npm-debug.log
+package-lock.json
 tmp

package.json

@@ -21,11 +21,11 @@
   },
   "dependencies": {
     "grunt": "^1.0.1",
-    "node-wp-i18n": "^1.0.2"
+    "node-wp-i18n": "^1.0.4"
   },
   "devDependencies": {
-    "gettext-parser": "^1.1.2",
-    "grunt-contrib-clean": "^1.0.0",
+    "gettext-parser": "^1.3.0",
+    "grunt-contrib-clean": "^1.1.0",
     "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-jshint": "^1.1.0",
     "grunt-contrib-nodeunit": "^1.0.0"