For Coursera's Getting and Cleaning Data course project

To run this script, the current working directory must be "UCI HAR Dataset/", unzipped from: https://d396qusza40orc.cloudfront.net/getdata%2Fprojectfiles%2FUCI%20HAR%20Dataset.zip

When the script runs:

• Labels and features are read in straight from their own text files.
• A function for reading a data folder is created
  • This function joins together the subject, X, and y files from each folder
  • Specific activity names replace numeric activity names in this function as well
  • The train and test datasets are read in using this function, then joined.
• Column names are added, subsetted, and then formatted
• The average of each column for each subject and activity