Allow shinyApp objects to appear inside tags
Merge pull request #503 from rstudio/bugfix/shinyapps-in-tags-2

Allow shinyApp objects to appear inside tags
Bump version
Update NEWS
there should not be #' before @examples
Merge pull request #505 from yihui/doc/splitLayout

there should not be #' before @examples
Merge pull request #504 from rstudio/news-update

Update NEWS
stats may not have been loaded in the event of .onLoad()
Merge pull request #506 from yihui/bugfix/stats

stats may not have been loaded in the event of .onLoad()
set the margin to 0 before plot.new()

otherwise users will be unable to draw small plots because of the common error "figure margin too large", e.g. renderPlot(..., width=200, height=100)
explain why par(mar = rep(0, 4)) is necessary before plot.new(), per @wch's suggestion
Merge pull request #508 from yihui/bugfix/large-margin

set the margin to 0 before plot.new()