An example on how to use FluentNHibernate using both FluentMapping and AutoMapping
References:
http://www.jagregory.com/writings/fluent-nhibernate-auto-mapping-and-base-classes/
http://www.aaronstannard.com/post/2010/12/24/fluent-nhibernate-bidirectional-many-to-many.aspx
http://marcinobel.com/index.php/fluent-nhibernate-conventions-examples/