Prevent test fails for the npm build.
Make more underscore tests pass.
Fix error in Firefox < 4.
Update underscore tests and vendor again.
Simplify `_.isEmpty`.
Ensure `pluck` always used `property` and `findWhere` and `where` always use `matches`.
Avoid `!=` in `createCallback`.
Use `_.noop` more in test/test.js.
Add tests for `_.pluck`, `_.findWhere`, and `_.where` for their `key` or `source` arguments.
Rebuild dist.
Add `_.intersection` and `_.union` tests.
Whitespace nits in test/test.js. [ci skip]
Add `_.difference`, `_.intersection`, and `_.xor` tests.
Ensure `_.difference` works with arrays regardless of arg position.
Rebuild dist.
Fix assert count.
Remove native `trim`, `trimLeft`, & `trimRight` use.
Treat `\x85` as whitespace.
Automatically rewritten for npm.