start an RStudio project
add readme
add the check script and .travis.yml
add an example PACKAGES file
write out the failed packages
add a shell script to update branch
rename the shell script
add a script to create branches from the current master if they do not exist
add a Makefile to simply the commands (e.g. make create; make update)
commit only if add was successful
if the branch exists, check it out, rebase on master and run cran-check.R, otherwise create the branch
remove branch-update, and rename branch-create to branch-update