THRIFT-2940 nodejs: move package.json to root folder

fix make dist & co
diff --git a/.gitignore b/.gitignore
index 65bb2ec..228c6ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -217,6 +217,7 @@
 /libtool
 /ltmain.sh
 /missing
+/node_modules/
 /stamp-h1
 /test/status.html
 /test/c_glib/test_client