RData wasn't being included in clobber
RData should be cleaned, not clobbered
Don't remove .RData; use --no-restore

The problem was that R was restoring saved sessions.
But I fixed SublimeREPL and iTerm to run R with the
--no-restore flag. The Rakefile now uses that flag
too.
Use Rscript instead of R CMD BATCH
Store geocoded data in temp
Fix data point that couldn't be geocoded
Clarified points displaying in England
First attempt at a map