Fixed strange sentence structure.
Removed hightlight and color control.

There are better solutions out there for modifying an existing
colorscheme, and vim can (apparently) display colors besides User# in
the statusline.
Merge pull request #1 from kernan/test

Removed hightlight and color control.
Added line and column parts to core extension.
Removed descriptions of things that don't exist.
Added theme section.
Replaced nosep with separator.