pollutantmean.R -- works for sample output
complete.R      -- works for sample output, doesn't preserve the order 30-25
                   for test case complete ("specdata", 30:25)
rProgWeek2.R    -- two functions to read the csv files
These are the data files provided by the class used for Programming Assignment 2
Modified complete.R to ready csv files as list to preserve order.
complete now passes sample output test cases
corr.R (problem 3) passes the example test cases
First pass at cachematrix.R (tested with identity matrix and it's transpose)
Removed the files from Assignment 1 since they don't need to be in the
promote.