Hopefully it'll pass validation and not be treated as a bed file,
even though it ends in the .bed extension.
(There were lots of problems with a previous subission because the
cufflinks bed file was almost but not quite a match to ucsc's bed
file validator. Or maybe they caved on the definition of a score.)
('*.bai', None),
('*.bam', self._guess_bam_view),
('*.splices.bam', 'Splices'),
+ ('junctions.bed', 'Junctions'),
('*.jnct', 'Junctions'),
('*.plus.bigwig', 'PlusSignal'),
('*.minus.bigwig', 'MinusSignal'),