old_contents: // first, remove configuration entry in case service is already configured
  Meteor.startup(function () {
  Accounts.loginServiceConfiguration.remove({
    service: "facebook"
  });
  Accounts.loginServiceConfiguration.insert({
    service: "facebook",
    appId: "153360715055453",
    secret: "4e7e2e7d83713753838fc4a02a29984a"
  });
  
  // first, remove configuration entry in case service is already configured
  /*Accounts.loginServiceConfiguration.remove({
    service: "twitter"
  });
  Accounts.loginServiceConfiguration.insert({
    service: "twitter",
    consumerKey: "yourConsumerKey",
    secret: "yourSecret"
  });*/
  
  // first, remove configuration entry in case service is already configured
  Accounts.loginServiceConfiguration.remove({
    service: "google"
  });
  Accounts.loginServiceConfiguration.insert({
    service: "google", clientId:"799441956859msqd4lvbo40kf3u7pnh9rudh8ti19hpl.apps.googleusercontent.com",
    secret: "61yoKcCFDfafZ9Z8nKX_VW61"
  });
  });
  
new_contents: // first, remove configuration entry in case service is already configured
  Meteor.startup(function () {
  Accounts.loginServiceConfiguration.remove({
    service: "facebook"
  });
  Accounts.loginServiceConfiguration.insert({
    service: "facebook",
    appId: "",
    secret: ""
  });
  
  // first, remove configuration entry in case service is already configured
  /*Accounts.loginServiceConfiguration.remove({
    service: "twitter"
  });
  Accounts.loginServiceConfiguration.insert({
    service: "twitter",
    consumerKey: "yourConsumerKey",
    secret: "yourSecret"
  });*/
  
  // first, remove configuration entry in case service is already configured
  Accounts.loginServiceConfiguration.remove({
    service: "google"
  });
  Accounts.loginServiceConfiguration.insert({
    service: "",
    secret: ""
  });
  });
  
subject: Update accounts.js