title: Mongo admin database credentials don't work in other databases on server
body: <p>The documentation for Mongo states that when authentication is enabled, and for users added to the admin database, these users should be able to access the other databases in Mongo, with the rights granted at the admin database level.</p>
  
  <p>"The admin database is unique. Users with normal access to the admin database have read and write access to all databases. Users with read only access to the admin database have read only access to all databases."   <a href="http://docs.mongodb.org/manual/administration/security/" rel="nofollow">http://docs.mongodb.org/manual/administration/security/</a></p>
  
  <p>But in testing with the C# library version 1.7.0.4714, this is not the case.
  Only accounts created in a specific database have access to that database.</p>
  
  <p>I have tested with credentials on the connection string
  and by setting credentials explicitly at the database level in C#</p>
  
  <pre><code>server.GetDatabase(...
  new MongoClient(a connectionString ...
  </code></pre>
  
  <p>Does anyone know if this expected behavior? or can suggest a resolution.</p>