Import gapminder data.
Initial commit
Setup Rstudio project with data, simple R script
Add 2nd datafile limited to 2007 only
Put Cote d'Ivoire in quotes to avoid scan errors
Ideas for exploring the gapminder data set.

Just playing around; trying to think of nontrivial functions that
will be straightforward to test, but the sort of thing that they
might actually use.
added figures to .gitignore
executable examples from Rich
added functions from Rich and plot function
added script that saves the map
added .DS_Store and data/.DS_Store to .gitignore
added example data for shell exercises
Rename utilities function
Examples using dplyr package
Exmaple for repeating things
added messy folder for exercises
Add missing source file
changed function to plot map - now based on packages maps and mapproj only. Included choice of selected countries.
removed some useless exercise files
resolved conflict