Khan/khan-exercises — pull request #36219 by dmnd (2012-12-20 09:45:36+00:00)
Title: Update qtip version, along with khan-site.css

[I updated the qtip library in khan-website](https://khanacademy.kilnhg.com/Review/K91484). This commit updates khan-exercises to match.

I regenerated khan-site.css with update-khan-site.sh after [patching](https://khanacademy.kilnhg.com/Review/K91485) deploy/compress.py to once again generate "combined.css" files.

Reviewer: @spicyj

Test plan: Locally served exercises seem to look ok.