title: Get Meteor collection by name
body: <p>Suppose I write:</p>
  
  <pre><code>new Meteor.Collection("foos");
  new Meteor.Collection("bars");
  </code></pre>
  
  <p>Is there an API for accessing those collections by name? Something like <code>Meteor.Collection.get(name)</code>, where <code>name</code> is <code>"foos"</code> or <code>"bars"</code>? I know I could write something like</p>
  
  <pre><code>var MyCollections = {
      foos: new Meteor.Collection("foos");
      bars: new Meteor.Collection("bars");
  }
  </code></pre>
  
  <p>and then use <code>MyCollections[name]</code>, but I'd prefer to use an existing API if one exists.</p>