Requirecontext.js: Rewrote define so it calls ensure rather than require. Removed unnecessary Analyzer.stripBuiltins. Requirecontext.html: Changed test to work with above changes. Analyzer.js: Made code for stipBuiltins more efficient.
Merge pull request #270 from apmadhani/master

Changes AMD Flow to use .ensure() instead of .require(). This just makes things more consistant: ensure() is the main download conduit for both AMD and CJS systems