var UserSchema = new mongoose.Schema({
  email: {
    type: String,
    unique: true,
    required: true,
    trim: true,
    dropDups: true,
    index: {unique: true},
  },
  username: {
    type: String,
    unique: true,
    required: true,
    dropDups: true,
    trim: true,
    index: {unique: true},
  },
  password: {
    type: String,
    required: true,
  },
  passwordConf: {
    type: String,
    required: true,
  }
});