_.property support for null and undefined
Added Array created in another document test
Added support for arrays created in different document for `_.isEqual`
Removed the areArray check from the already convoluted `if` check for clarity as suggested by @jdalton
Implement _.isError
Optimize shuffle and fix comment
shuffle: Avoid swapping current index
Merge pull request #1712 from megawac/shuffle

Optimize shuffle and fix comment
Handle backticks in _.escape/unescape
Refactor _.*escape tests; Add notEqual to config
Simplify _.*escape declarations
Optimize *escape by testing a string before escaping
optimize _.uniq (#1741)
Merge pull request #1740 from megawac/escape-simp2

Optimize and simplify escape
Enable max/min fast path for all non-iter cases
Merge pull request #1742 from megawac/min-max-fast

Enable max/min fast path for all cases with no iterator
Use rawgit for linking to old versions of docs
Merge pull request #1745 from megawac/rawgit-docs

Use rawgit for linking to old versions of docs
use cdn.rawgit.com instead of rawgit.com
Fix usage of hash function in `_.memoize`.

The function `_.memoize` has a bug where the first argument to the
function is used as the key when retrieving a result from the cache,
ignoring the hash function.

The fix is always to use the computed `address` as the key to the cache.

Confirmed the regression and fix with the updated unit test.