v0.023

    Add module that takes the variant sequence from a SCF trace file.
    Add module that attempts to merge multiple variants in a VCF file into one, for a given small region.
    Integrated the merge VCF module into the crispr es qc workflow.
add --dir flag to allow user to name work directory
new location for extract_seq cmd n staden package
    Update crispr_damage_analysis.pl script to take optional dir argument plus
        point to version of staden installed in the vms.