title: Mongoose doesn't create new collection
body: <p>I have following in server.js :</p>
  
  <pre><code>    var mongoose = require('mongoose'),
      Schema = mongoose.Schema;
  </code></pre>
  
  <p>and a model like this one which works fine ! :</p>
  
  <pre><code>    var userSchema = new Schema({
      firstName: { type: String, trim: true, required: true },
      lastName: {type: String, trim: true, required: true},
      cellPhoneNumber : {type: Number, unique: true},
      email: { type: String, unique: true, lowercase: true, trim: true },
      password: String
      });
  </code></pre>
  
  <p>and there's an another model like below one which doesn't work ! </p>
  
  <pre><code>var jobSchema = new Schema({
  category: {type: Number, required: true},
  title: {type: String, required: true},
  tags: [String],
  longDesc: String,
  startedDate: Date,
  views: Number,
  report: Boolean,
  reportCounter: Number,
  status: String,
  poster: String,
  lastModifiedInDate: Date,
  verified: Boolean
  });
  </code></pre>
  
  <p>the two var are as follow : </p>
  
  <pre><code>var User = mongoose.model('User', userSchema);
  var Job = mongoose.model('Job', jobSchema);
  </code></pre>
  
  <p>-- mongod doesn't log any error after server.js is connected to it .
  Does anybody know what's wrong with my second model ? </p>