Add created and changed values for contributor.
Merge pull request #101 from amitaibu/84

Add created and changed values for contributor.
Fix Biblio-Issues View.
Use BiblioStyleBibtex::importGeneric() instead of BiblioStyleBibtex::import().
Merge branch 'fix-bibtex' of github.com:amitaibu/biblio into md5-tests
Import tests now work.
Add MD5 test for biblios.