…tive numbers Summary: For an email request from Ben Stenhaug. Test Plan: Try the exercise and make sure there are never two operators together, like 5 * -4. Reviewers: emily, eater Reviewed By: eater Differential Revision: https://phabricator.khanacademy.org/D16444
Summary: (Request by Ben Stenhaug) Test Plan: Keep refreshing until one of the numbers is zero and check the hints. Check the other hints just in case. Reviewers: eater, emily Reviewed By: emily Differential Revision: https://phabricator.khanacademy.org/D15491
Summary: Also did some misc cleanup in khan-exercise.js, mostly related to module-y things ("151 ++----"). I combined local jquery-ui into one file to make it easier to load. Test Plan: Opened addition_1, deriviative_intuition, graphing_points_2 locally, and all looked fine. In webapp/khan-exercises/, ran: ``` npm install -g requirejs r.js -o requirejs.config.js ``` then saw that /exercises/addition_1 looked right. Reviewers: eater, jack Reviewed By: jack CC: alex Differential Revision: http://phabricator.khanacademy.org/D7095
… the data-if attributes.
…tly-expanding whitespace problem in the cleaner.