Minor changes: just fixed a typo in the javadoc.

git-svn-id: http://chianti.ucsd.edu/svn@31067 0ecc0d97-ab19-0410-9704-bfe1a75892f5
Fixes #1662 (Attributes in VizMapper are sorted in ASCII/Unicode order, not lexicographical order)

git-svn-id: http://chianti.ucsd.edu/svn@31068 0ecc0d97-ab19-0410-9704-bfe1a75892f5