Add support for latest Zebrafish genome build: Zv9
Remove separate tabix install since tabix now included in bcftools as of the latest release candidate
brew: check for vcfutils.pl samtools overlap with bcftools and reinstall samtools as needed
Run sequence preparation from UCSC/Ensemble inside a temporary work directory to avoid picking up FASTA files from existing transcript directories
Merge branch 'master' into nmdp-ngs-pipeline
adding igv, igvtools