update some packages and remove node_modules from repo

app/node_modules/electron-osx-sign/test/basic.js

@@ -1,29 +0,0 @@
-var sign = require('..')
-
-var waterfall = require('run-waterfall')
-
-var config = require('./config')
-var util = require('./util')
-
-function createDefaultsTest (release) {
-  return function (t) {
-    t.timeoutAfter(config.timeout)
-
-    var opts = {
-      app: util.generateAppPath(release)
-    } // test with no other options for self discovery
-
-    waterfall([
-      function (cb) {
-        sign(Object.create(opts), cb)
-      }, function (cb) {
-        t.pass('app signed')
-        cb()
-      }
-    ], function (err) {
-      t.end(err)
-    })
-  }
-}
-
-util.testAllReleases('defaults-test', createDefaultsTest)