improve log message, remove TODO
set oligo classes up as attribute, write tests to make sure correct classes are set up for given design method
remove TODO, no fool-proof way of getting gene from exon in EnsEMBL
remove TODO for getting design phase, already a ticket
we do not need to override the aos dirs
whitespace
Code tidy up, pod updating
clarify code comment
remove no longer valid TODO comment
work out gene_id type when consolidating design data file, add tests for this