unfortunately, R2SWF was removed from CRAN
import escape_html from highr
closes #601: results='asis' implies comment=NA
closes #602: preserve messages that contain \n
bump version
do not install -doc packages to speed up travis install procedure
install basic CRAN packages from c2d4u
add r-recommended metapackage instead of adding individual packages
further speed-up by fetching only newly added repositories with apt-get
Merge pull request #603 from krlmlr/master

Speed up Travis-CI builds
fixes #604: damn the auto reduction in apply()
bump version
also check against R-devel from Michael Rutter's PPA
Merge pull request #605 from krlmlr/master

also check against R-devel from Michael Rutter's PPA
allow spaces in the chunk header; closes #606
strip off possible chunk options in chunk headers for read_chunk()

eventually we should be able to just read chunk options as well
add link to the book
maybe > just works? I do not understand dd

dist-upgrade may just be upgrade
fixes #592 again for the speed issue: str_split() is significantly slower than strsplit(), not surprising, though
now I know why dd was used (sudo does not work on >); but tee can be used as well