Remove extra variant output function in Common. Closes #77.
add dream training subset sam files for testing
add reviewboard rc
update gitignore
Add threshold-based somatic caller. Introduce support in DistributedUtil for working with two read RDDs.
formatting fix
minor optimization: change for -> while in DistributedUtil
Make -out argument optional, and print genotypes to stdout if it is omitted.
Merge pull request #87 from hammerlab/threshold-somatic-caller

Threshold somatic caller