v0.006

    Added script for finding human design targets.
    Add option to specify classes of repeat masking to apply to sequence.
    Re-try connecting to EnsEMBL API if there are any errors ( up to 5 times )
    Various bug fixes and refactoring.
allow for creation of command line paremeters with multiple values
allow report to be run on one gene
add target exon to log output for del-exon command
another go at trying to pin-point ensembl db connection issues, now check sequence retrieval from slice for errors
add another try catch block to try and isolate the ensembl db disconnect issue

    Added more try / catch blocks to isolate the EnsEMBL API disconnect error.
    Minor changes to reporting and run multiple designs scripts.