Try lucius light for xterm and vim

Set up lucius light colors in both xterm and vim.  This way both look
the same -- this is aesthetically pleasing.  Lucius has a nice low
contrast, but with a light background, the transition from terminals to
web browser isn't as hard on the eyes.

Ideally the lucius scheme could be modified slightly to work with an
even lighter/whiter background to get closer to others, but let's try
this for now.