#49: If Year is populated and Status is not, the status should be Published.
#43: Add md5 property to {biblio} and {biblio_contributor} to prevent duplicate entreis.
#45: Improve BibTex import mechanism.
Some BibTex might come we double curly brackets, so strip them out from the beginning and end of the value.
#47: Add getBiblioContributorsFromNames method.
#57: Add EndNote import (tagged and XML).
Merge master.