Reorganize `_.template` tests.
Templates should not reference `_.escape` if "escape" delimiters are not used. [closes #484]
Add the version of Underscore our underscore build aligns to in readme. [ci skip]
Fix `_.template` doc typo. [closes #484] [ci skip]
Simplify `baseUniq`.
Remove array and object pools.
Cleanup `low` and `high` assignment in `_.sortedIndex`. [ci skip]
Fixed _.indexBy() thisArg example in documentation
Merge pull request #486 from rexxars/indexby-thisarg-docfix

Fixed `_.indexBy` `thisArg` example in documentation. [ci skip]
Optimize `_.isEqual` for primitives.
Add falsey value optimizations for `baseDifference`, `baseFlatten`,  `baseUniq`, `_.flatten`, and `_.uniq`.
Cleanup the `callback` assignment in `_.clone` and `_.cloneDeep`.
Add test to ensure `_.flatten` returns empty arrays for non array-like objects.
Minor comment nits for `-0` and `+0`. [ci skip]
Rebuild docs and dist.
Tweak ticks around "callback" in test titles. [ci skip]
Add a test for `_.uniq` with `isSorted`.
Update the tested node version in readme. [ci ckip]
Add placeholder support tests for `_.bind`.
Update large array benchmarks in perf.js. [ci skip]