added pdf of slides from class01
Merge pull request #2 from Eric-Xu/master

clear up instructions on ipython notebook config
updated holiday dates
added syllabus/schedule
updated README
example test
moved example pdfs to private repo
updated syllabus
updated u[coming activity
materials for lecture portion of class 02
fixed git clone instructions
lab notebooks
added advanced lab
edits to notebooks
fixed a few syntax bugs
updated githelp file, added class02 slides
Merge branch 'master' of github.com:gads14-nyc/fall_2014_lessons
added numbered steps