Experimenting with httr instead of RCurl
Renaming & refactoring to prepare for switch to httr
Switched in httr for the read operation.  Adds status code to console message.
Changing `raw_csv` value to `raw_text`, because that's a better name when it's only used for returning unsuccessful operation output.
Temporarily removing tests to see if that's what's choking Travis's time outs.
Incorporating oneshot changes to batch read.
Reordered returned list values; added more tests for status codes
Updating write methods with httr; the intentional errors alternate between 411 and 404
Add more examples for redcap_project; upgrading to roxygen2 4.0.1.99
Built with R 3.1.1 RC
Update package dependencies; Add httr to troubleshooting options
Updated SSL Certs to 2014-04-22 from https://raw.githubusercontent.com/bagder/ca-bundle/master/ca-bundle.crt
Adding Linux playground to help fish out OS discrepancies of libcurl library
Still working on discrepancies between  libcurl versions
changing parameter name of httr for sslv3
Reinstated status code error checks
Adding verbose() to httr section of Troubleshooting
Remove URL erro checks again.  It's still too flakey with the Windows builds and unnecessary fails R CMD check.
Using regex for status message test.  Win-Builder was expecting an extra "\r\n" for some reason.
Finished adapting to httr including line breaks at the end of status messages (https://github.com/hadley/httr/issues/115).  Made code formatting more consistent in Troubleshooting vignette.