Color symbolic links differently

[darylwright]

The user should be instantly aware of when they are in a symlink directory. The directory name should be color coded as a visual cue. There are two places this color coding should occur:

1. In the main directory list, symlink directories should show up as a different color.
2. In the title box, the symlink part of the path should be color coded only (e.g. /home/user/somelink/somedir/anotherdir where somelink is the only part that has a different color). This can also be an indicator as to how many symlink levels deep the user is navigating.

This issue requires completion of #15.