Only call the delete callback once.

(Eliminate buildup of spurious delete messages in a program with many commits.)
some basic mutect options. No functionality.
build simple command for running. Needs to be tested.
Multiple fixes upon first manual test.
* Genome::File::Fasta did not show up in help. Removed.
* Intervals arguments were not working
* Had an incorrect accessor call typo
initial stubin of a conversion module for Mutect. Needs a test.
add support for filtering out REJECT'ed sites ala Strelka
initial skeleton for Mutect DV2 mutation
eq when one value includes a newline is no good :(
Multiple changes to DV2 Mutect:
* Hackily subvert argv processing to delegate command line parameters to
  to the GMT tool.
* override the sorting of detector output so we don't lose the header
beginnings of a mutect test module. Contains references to testing directories that will ultimately need to be moved
add some functionality to help with parallel workflows
wrapper class to help with parallelizing Mutect calls
make sure to return result of program execution
add parallel workflow. failing on blades for reasons yet unknown.
refactor to be less stupid
properly check requested chunk numbers
Continue to refine Mutect DV2 module and tests
module to merge mutect's custom output file format
whitespace cleanup
turn off generation of coverage file