added files for documentation example
Merge pull request #4 from rachelslaybaugh/master

added files for documentation example
Added a readme file explaining the layout of the tutorial. Also added data
stored in a rawSignals.txt file that serves as a typical example of some
data that you might want to analyze on-the-fly with IPython.
Merge pull request #5 from rossbar/master

Added a readme file explaining the layout of the tutorial. Also added da...
adds testing