updated gitignore to ignore data files (bam/sam/bai)
updated gitignore to ignore data files (bam/sam/bai)

gatoravi/svviz,gatoravi/svviz,svviz/svviz,gatoravi/svviz,svviz/svviz,svviz/svviz,svviz/svviz,gatoravi/svviz