Version 3.0.4

-- Plugin:
* Improved menu location logic and handling of menu location variables.
* New menu entry added for cycling the special key.
-- Colorscheme:
* Added highlights to the special key (Vim help, manpages, Python).
* Relocated LineNr cycling to another key.
* Improved logic for cleared normal highlight.
* Added special FoldColumn highlight for Normal  black background.
* Improved a few highlights, including some related to Vim Diff,
    Vim Help, Asciidoc, CSS, HTML, Java, Sed, manpage,
    Markdown, Perl, PL/SQL and Python.
Version 3.0.5

* Plugin:  New function for showing each option's highlights, and new  supporting menu entry.
* Colorscheme:  Added global variable for exporting the available highlights for each option.  Improved style for (among other) VimHelp / VimL, Diff, Asciidoc, Markdown, Javascript, Awk, Sed, SQL, PL/SQL, Perl, Python, Ruby, NERDTree, XML/HTML, CSS.  Small changes in cycling structure/items.
* Helpfile: corrections, style changes and better explanations.
Version 3.0.6

* Colorscheme: Bug fix: corrected missing entry in an internal list.
* Colorscheme: Changed a few Asciidoc and Python highlights.
* Helpfile: Added a topic about cleared highlights (under the Issues section).