cleanup output dirs before starting pipeline
Merge pull request #62 from uci-cbcl/wbiesing/minor-cleanups-for-driver

cleanup output dirs before starting pipeline
fix fasta output to use internal kmer not key
deploy jar binaries *after* deleting the HDFS_WORK_PATH
Merge pull request #65 from uci-cbcl/wbiesing/fix-for-missing-jars-in-hdfs

Fix for "missing jar" problem
Merge pull request #64 from uci-cbcl/wbiesing/fix-fasta-output

fix fasta output to use internal kmer not key
Merge branch 'genomix/fullstack_genomix' into anbangx/add-expected-output