Pass --no-bin-links to npm rebuild to fix #7401.

tools/static-assets/server/npm-rebuild-args.js

@@ -2,6 +2,11 @@
 var args = [
   "rebuild",
 
+  // The --no-bin-links flag tells npm not to create symlinks in the
+  // node_modules/.bin/ directory when rebuilding packages, which helps
+  // avoid problems like https://github.com/meteor/meteor/issues/7401.
+  "--no-bin-links",
+
   // The --update-binary flag tells node-pre-gyp to replace previously
   // installed local binaries with remote binaries:
   // https://github.com/mapbox/node-pre-gyp#options