grab test coverage now at 100%
added assertion checks for :first and :last in read_fasta
added assertion checks for :first and :last in dump
fixed warning in options_helper
added tests for bad first and last options in read_fasta and dump
added a bunch of missing seq files in order to make tests pass
Merge branch 'grab'
add some pipeline tests
removed glob from Pipeline.to_s
added tests for Pipeline
added some more tests for Pipeline
finished unit tests for pipeline.rb
Merge branch 'pipeline_tests'