Add segmentation outline
Add arrays notebook
Second edit run through notebooks
Merge pull request #3 from scikit-image/edited-sections

Second edit run through notebooks
Update based on feedback.

Ensure consistent numpy and matplotlib environment and clarify filtering kernels
Add viewer examples copied from SciPy 2013 lightening talk
Add morphological operations notebook
Remove .ipynb from gitignore
Add segmentation notebook
Almost complete morphology exercise
Prefer local images to web
Merge pull request #2 from jni/segmentation

I'm self-merging in the interest of time... All the basic notebooks are up now!
Wording edits to notebooks based on Nora's feedback
Merge branch 'edit/final-run-through'
Remove old index
Merge pull request #4 from scikit-image/remove/old-index

Remove old index