helios/bioruby-samtools — pull request #12 by wwood (2012-03-08 06:43:02+00:00)
Title: require bio/db/pileup and ire 'bio/db/vcf' by default.

Otherwise I get:

> pile = Bio::DB::Pileup.new
NameError: uninitialized constant Bio::DB::Pileup