CDK-521: Add changes from 0.14.1 site.

* Remove confusing JPA reference
* Add link to POJO article on wikipedia
* Remove formatting for table now in CSS
* Linkify movielens reference, missing in this version
Merge pull request #14 from kite-sdk/CDK-521-port-changes-from-0.14.0

CDK-521: Add changes from 0.14.1 site.