Re-reverted back to Chris H's matplotlib tutorials.
Started simplifying the pandas tutorials
Finished first draft of pandas update and added links to end of matplotlib
Removed dictionary-style indexing in pandas to avoid confusion
Merge pull request #6 from choldgraf/chris_matplotlib_pandas_mods

Chris matplotlib pandas mods
Merge pull request #7 from davclark/gh-pages

Dav Clark's git materials for Tuesday
add shell lesson for Anna
Merge pull request #8 from aschn/gh-pages

add shell lesson for Anna
Adding ipythonblocks and weather dataset for day 1.
Update tutorial.md
Update index.html
Merge pull request #9 from aschn/patch-1

Minor changes and add link