update packages to latest version

node_modules/npm/test/packages/npm-test-optional-deps/test.js

@@ -0,0 +1,9 @@
+var fs = require("fs")
+var assert = require("assert")
+var path = require("path")
+
+// sax should be the only dep that ends up installed
+
+var dir = path.resolve(__dirname, "node_modules")
+assert.deepEqual(fs.readdirSync(dir), ["sax"])
+assert.equal(require("sax/package.json").version, "0.3.5")