Remove options nosingler and by_vim_instance.
Delete brackets to get valid classfor object.
Include brackets while getting classfor object.
On Windows, use $USERNAME as rplugin_userlogin.
Update knitr options.
Don't imap <LocalLeader> if insert_mode_cmds = 0.
Map only valid for current buffer.
Require vimcom 0.9-7.
Version 0.9.9.2.
Syntax highlighting for R code chunks in HTML file

Problem
-------
In the knitted HTML output the R code chunks are not highlighted.

Issue
-----
Calling knit2html() with the options as an empty string changes
the default options. That is

    knit2html("file.Rmd", options="")   # No syntax highlight
    knit2html("file.Rmd")               # Yes to Syntax Highlight

Solution
--------
Remove the options argument.

Effect
------
Highlights R code in knitted HTML file. As desired.
Use the standard variable did_indent.
Thanks to Will Gray for reporting the bug.
Source indent/r.vim earlier.
Set 'iskeyword' at both dirs: ftplugin and syntax.
Pass vimrplugin_sweaveargs to Sweave().
Thanks to Zé Loff for reporting the bug.
Don't set the value of b:main_tex_file.
Note on how to use LaTeX-Box.
Scape backslashes to avoid Python error.
New option: vimrplugin_source.
Require vimcom 0.9.8.
Source other scripts at the end of ftplugin.