This reverts commit 66dfbab8bb65f5444ca8206302a69b9cb5e7f7cf.
This was a poor commit for more than one reason.
Thank you to Juergen for help on this.
See the following for more details:
http://comments.gmane.org/gmane.editors.lyx.devel/148425
Manuals, examples and templates that use (traditional) bibtex should have set the bibliography processor to bibtex. Else, these documents do not compile if a user has set the processor to 'biber' in the preferences