Improve color handling

[supercrabtree]

More colors needed, files should be the same as ls -lah

[supercrabtree]

Colours should be set by using the first 16 teminal colors, this way they will automatically work with peoples colour schemes.

Will need to think of a solution for rotting files and filesizes, perhaps looking at their background color and using that as a base?

[EdJoJob]

To get files the same as for ls, you should match the colors from $LSCOLORS and $LS_COLORS