Fixing platypus to output to stdout even when using multi-core.
Improvements to somatic variant finding script
Updated somatic variant finder
Merge pull request #27 from godotgildor/master

Fixing platypus to output to stdout even when using multi-core.
Fix build script to give error messages when build fails.
Merge branch 'master' of https://github.com/andyrimmer/Platypus
Added parameter to specify the size of reference call blocks. Ref call QUAL is now
computed from minimum per-base coverage across all samples.
Minor tidy in variantutils.py. Fixed overflow bug in countTotalReads in variantcaller.pyx.