Open pdf only once if vimrplugin_openpdf = 1.
Now, the values of vimrplugin_openpdf mean:
0 = Don't open the pdf.
1 = Open only once (the first time that pdflatex is run).
2 = Always open the pdf.
Do "syn sync" command in Rdoc.
Update: the next release will be 1.0.
add SendLineToRAndInsertOutput
Merge pull request #85 from sgibb/SendAndInsert

add function to send current line to R and write its output into the line below
Change SendLineToRAndInsertOutput shortcut to \o.
Avoid "modifiable is off" error in rdoc.
Add "syntax sync" to syntax/rmd.vim.
Use "syntax enable" instead of "syntax on".
Comment only output when inserting it.
The function SendLineToRAndInsertOutput() was commenting every non empty
line and not only the lines just inserted by Rinsert.
Make rdocArgItems more precise.
Try again to avoid E341 (Internal error, lalloc).
Don't show empty Libraries.
Update .GlobalEnv and Libraries at once.
Require vimcom.plus 1.0-0.
Improve vimcom related code.
Wait for vimcom.plus loading.
handle space in path in function RAddToFunList
escape space in g:rplugin_home
Merge pull request #89 from yukunlin/master

handle space in path in function RAddToFunList