Docs are updated to reference the required patch number (7.2.052) and
the code is updated to test based on the existence of that patch, rather
than brute forcing.
Add the most recent rgb.txt from upstream as part of the package,
installed to ~/.vim. Accordingly, CSApprox.vim will now search in all
dirs in &rtp, in order, before deciding that no rgb.txt could be found.
- Update "Last Changed", version number, and changelog
- Suggest installing larger vim packages as a workaround for no +gui
- Modify the way g:CSApprox_verbose_level works; now 'verbose' is set to
the max of that variable and &verbose
- Fix a minor bug causing a complaint that not enough colors are
available when changing colorschemes after a :gui
- Fix some comments
