Correct `_.template` use in saucelabs.js.
Remove sorting from `_.functions`.
Rework `lodash`.
Remove falsey array check in `baseFlatten`.
Minor nit in readme. [ci skip]
More `lodash` cleanup.
Remove `_.isObject` use from `_.omit` and `_.pick`.
Simplify `_.isObject` check in `_.trunc`.
Avoid nullish being treated as plain objects in `_.keysIn`.
Rename `callback` params to `iterator` or `customizer` where appropriate.
Fix failing tests in older IE related to iteration order.
Make categories singular.