cleanup*: bring back roxygen2

Author: bgoodri

cleanup

@@ -1,5 +1,5 @@
 #!/bin/sh -e
 
 # Note to Windows users: This is not actually platform specific.
-# "${R_HOME}/bin/R" --vanilla --slave -e 'roxygen2::roxygenize(clean = FALSE)'
+"${R_HOME}/bin/R" --vanilla --slave -e 'roxygen2::roxygenize(load_code = roxygen2::load_source, clean = TRUE)'
 exit $?

cleanup.win

@@ -1,7 +1,7 @@
 #!/bin/sh -e
 
 # Note to Windows users: This is not actually platform specific.
-# "${R_HOME}/bin/R" --vanilla --slave -e 'roxygen2::roxygenize(clean = FALSE)'
+"${R_HOME}/bin/R" --vanilla --slave -e 'roxygen2::roxygenize(load_code = roxygen2::load_source, clean = TRUE)'
 cp -r src/stan_files tests/testthat/stan_files
 cp -r inst/include tests/testthat/include
 exit $?