fixed switch typo in HW0_solutions.ipynb
changed prob 1(b) and 1(c)
fixed typo
added Lab2_Notes.ipynb
added link to download Lab2_Notes.ipynb
updated to ipython 2.2.0; re-posting HW1.ipynb
fixed typo
corrected download link to raw.github.com
try 2 to fix github download link
added cell for solutions in 1(c)
Merge remote-tracking branch 'upstream/master'