Changes to allow Human Gibson eng seqs to be built (ignores ambig
Ensembl genes and reads gibson primers for genomic locations)
Merge branch 'master' into gibson_eng_seq_params
re-enable tests, problem was not with code, was slow Ensembl connection
Added return in the case that the design is a gibson-deletion
Merge branch 'gibson_eng_seq_params' into devel
v0.160

    Add fixes for running QC on human gibson plates