Solving issues #21 and #22 [skip ci]

extra.txt

@@ -7,7 +7,6 @@ bob.db.asvspoof2017
 bob.db.atvskeystroke
 bob.db.avspoof
 bob.db.banca
-bob.db.bio_filelist
 bob.db.biosecure
 bob.db.biosecurid.face
 bob.db.biowave_test
@@ -34,6 +33,7 @@ bob.db.verafinger
 bob.db.voicepa
 bob.db.xm2vts
 bob.db.youtube
+bob.db.pericrosseye
 
 #this database depends on bob.db.xm2vts and bob.db.arface
 bob.db.cuhk_cufs