Update archiver to v1.3.0. Fix for empty tgz files (#197)

Author: jacek-pulit

package.json

@@ -16,7 +16,7 @@
     "test": "grunt test"
   },
   "dependencies": {
-    "archiver": "^1.0.0",
+    "archiver": "^1.3.0",
     "chalk": "^1.1.1",
     "lodash": "^4.7.0",
     "pretty-bytes": "^3.0.1",