turns out doing only_existing files is an issue when you change; testing one conversion from csv to rds
Merge branch 'master' of github.com:modilabs/nmis_R_scripts into 27_save_load
install formhub related cleanup
for loops are bad
changing from csv to RDS (except for post-merge)
adding a fix to InstallFormhub.R
Merge pull request #44 from modilabs/27_save_load

27 save load, tested every scripts manually from external_data.R all worked and test passed except for high_na, which is not a big issue so far. Merged