Simple vectorization examples in numpy
Start of new Git Intermediate lessons

This Introduction borrows heavily from characters, concepts, and prose
from git/beginner/00-intro.md by @gvwilson.
Added first part of Conversational Git section.

(Also, some cleanup to introduction, and added index)
Add %pylab magic so ntoebooks run with plain ipython notebook without pylab=inline argument
Merge pull request #195 from gvwilson/gh-pages

Changing month name in YAML header to make it clear that we prefer 3-letter abbreviations.
Changing month name in YAML header to make it clear that we prefer 3-letter abbreviated forms
Merge branch 'gh-pages' of github.com:cliburn/bc into cliburn-gh-pages
Fixes to Cliburn Chan's vectorization lessons
Merge pull request #200 from gvwilson/cliburn-gh-pages

Incorporating Cliburn Chan's vectorization examples (with fixes)
Changing default email address to something real

So that when forkers don't change it it still works.
The EventBrite key for one particular bootcamp was hardwired into the included file.
This is definitely not a good idea, so this emergency fix switches back to a variable.
Merge branch 'gh-pages' of github.com:swcarpentry/bc into gh-pages
changing index file
reinstating two-column format
changing header levels
adding borders-background effect
adding wells
editing wells
redoing overview includes
First draft of second lecture of Intermediate Python

Focuses on modularization and documentation by building an
example that analyzes and plots data across a number of files.