Formatting changes (no actual code edited)
Changed consensus_iuap and added test

consensus_iuap had an invalid method (Bio::NucleicAcid.to_IUAPC(tmp))
and also had no test.
Corrected variable name
Corrected variable name
Updated tutorial
Testing image display
Testing images
Testing images
Testing images
Moved svg images to github.io
Moved svg images to github.io
Resize images
Resize images
Resize images
Corrected 'stroke' to 'stroke'
Updated tutorial
Reformatted Bio::Sequence::NA output
Updated tutorial
Replace 'chr_1' with Chr1 for consistency
Various edits to tutorial