Initial commit
 initial commit of data download and read script.
Commit of first round of initial files, synchronized with github
add code for plot 1
checkin of plot scripts, #3 still needs work, 1 and 2 basically complete.  loadPowr.R modified to add composite date+time field.
checkin of plot script #3
initial commitment of #4 script.  Minor modifications to README.md
mostly done functions.  Still need to modify plot4.R axis labels.
adding mulitplot.R, modifying #3 plot function to clean output graph.
final formatting changes. y axis tickmark labels not behaving. Need comments in scripts.
final formatting changes. y axis tickmark labels not behaving. Need comments in scripts.
add working png files for graphs.
modify output png files to specified height, width
re-commit modified png files
modify working git assignment directory to working directory structure for ExData_Plotting1