Changelog

v0.6.0

Updated "devDependencies" versions to fix vulnerability alerts
Dropped support of io.js and node.js v0.12.x and lower since new versions of "devDependencies" couldn't work with those old node.js versions (minimal supported version of node.js now is v4.0.0)

v0.5.1

Fix prototype pollution vulnerability (thanks to @mwakerman for the PR)
Avoid using deprecated Buffer API (thanks to @ChALkeR for the PR)

v0.5.0

Auto-testing provided by Travis CI;
Support older Node.JS versions (v0.11.x and v0.10.x);
Removed tests files from npm package.

v0.4.2

Fix for null as an argument.

v0.4.1

Removed test code from npm package (see pull request #21);
Increased minimal version of Node from 0.4.0 to 0.12.0 (because can't run tests on lesser version anyway).

v0.4.0

WARNING! Broken backward compatibility with v0.3.x;
Fixed bug with extending arrays instead of cloning;
Deep cloning for arrays;
Check for own property;
Fixed some documentation issues;
Strict JS mode.