Remove dead code.
Automatically adjust number of digits rendered on scales to ensure uniqueness.
Dynamically change label position when label overlaps ticks.
Hide axis labels when occluded by tick labels.
Ensure space between axis ticks always represents at least one nt (or aa).
Show seq coordinates in alignment viewer.
Show query/subject names in alignment viewer.
Reset alignment viewer's horizontal scroll position on each view.
Merge branch 'master' into gh-pages