Add `edgeSortedIndex`.
Optimize `_.escape`, `_.escapeRegExp`, and `_.unescape`.
Tweak `_.includes` test.
Add `_.invoke` tests.
Rename `baseSortedIndex` and `edgeSortedIndex` to `binaryIndex` and `baseBinaryIndex` respectively.
Optimize `baseIsEqual` for arrays.
Expand `_.assign` doc example. [closes #819] [ci skip]
Add `_.pluck` test for undefined properties.
Allow `sourceURL` option of `_.template` to be falsey.
Cleanup tests.
Minor `lodash` doc nit. [ci skip]
Update `_.result` to execute default values if they're functions.