Minor improvement and bug fixes
- Got around an occasional unexplained issue in then ada package were the SOR is sometimes categorized as type, by forcing it to be numeric.
- Changed defaults PASS score (i.e., probability value) from 0.7 to 0.5, and make them configurable in the SomaticSeq.Wrapper.sh script (i.e., --pass-threshold 0.5 and --lowqual-threshold 0.1).