Import the advanced tutorial presentation and supporting files.
Some fixes + slide on make_thunk.
Slides about optimization with example code.
Address some comments.
exercice 2 (or 3)
Add C exercice.
Fix a bit of bugs and touch up the optimization section.
Final touches.
The PDF file, to be sure.
small fix
A slide with the apply node picture?
Mention that outputs can be preallocated.
Add seed_rng() calls in tests.
Clarify the definiton of what grad() does.
Add slide slighty introducing the Python / Numpy C-API
Update the PDF.
Merge pull request #1 from abergeron/master

Advanced tutorial