Refractor 1st exampe _.each with for... of (void dependencies)

[janat08]

Change _.each to for( var of list) since not every one has underscore and this is examples. Definitely present in 1st example

var users = [
      {name:"Normal User",email:"normal@example.com",roles:[]},
      {name:"View-Secrets User",email:"view@example.com",roles:['view-secrets']},
      {name:"Manage-Users User",email:"manage@example.com",roles:['manage-users']},
      {name:"Admin User",email:"admin@example.com",roles:['admin']}
    ];

_.each(users, function (user) {
  var id;

  id = Accounts.createUser({
    email: user.email,
    password: "apple1",
    profile: { name: user.name }
  });

[mitar]

This is being done in #288.