External assemblies may include IUPAC ambiguity codes. Validation of sequences in load assumes bad sequence for FASTA records including these codes
Should we accept them all, or force them all to N?
I think we should accept them all. Do you foresee any problems with homologize or multalign (with translation in all frames)?
load now accepts all IUAPC nucleotide ambiguities
Fixes #41, #43, #49, #50, #51, #52
→ <<cset d1d54c643cbe>>