Update for larger displays

As two others have noticed and documented using (link below) there is
an issue with the main.xml file in the layout-large-port folder. I’ve
updated line 32 to reflect the correct class, and this resolved the
issue on my Galaxy tab.

http://p2p.wrox.com/book-enterprise-android-programming-android-database
-applications-enterprise/92940-bug-fragmentframework.html