CSV chapter - add some notes about working outside IPython Notebook
Add more clarity around 'pylab inline', especially for the first notebook example shot (everyone tries to type that one in)
Remove Windows workaround for old Anaconda 1.5, remove some alternatives to Anaconda that are probably poor choices in this context
CSV chapter: Fix formatting broken in 1c428e72e8, clarify geo_distance module a bit
Update pip command
Code style updates
Add back spoilers!
h3ify solutions
Move spoilers under /js
Move spoilers under /js
Move spoilers under /js
Add background
Don't use single line assignment operators (intoduced in 1f5145f) before they are introduced, add a section that explains what they do
Fix a bug in the airline route distance example, found by a student. The system works!
Switch to upbeat/helpful tone, as per comment by @lehmannro
remove recommendations of pylab

in favor of `%matplotlib`, which does the same thing, excluding imports.

- `%pylab` is gently discouraged, especially in teaching situations,
  because hiding namespaces confuses new folks.
- `ipython notebook --pylab` is strongly discouraged (and deprecated in IPython 2.0)
  because its effects are invisible in the notebook,
  causing great confusion and inconsistent behavior in notebooks
  depending on how the server was started, with no visible indication about why that may be.
Using native markdown tag for images on notebook.md