In Bootstrap pages, inherit code color. Fixes #329
Merge pull request #331 from wch/code-color

In Bootstrap pages, inherit code color
bump version
Update NEWS
Merge branch 'master' of github.com:rstudio/rmarkdown
make images responsive under bootstrap themes
Merge pull request #333 from rstudio/feature/responsive-images

make images responsive under bootstrap themes
bump version
update NEWS and NOTICE