Use assert 1.3

[assert](https://www.npmjs.com/package/assert) 1.3.0 has released.
There are compatible changes.

* 1.2.0: fix deepEqual bug about arguments ordering (https://github.com/defunctzombie/commonjs-assert/pull/6)
* 1.3.0: fix deepEqual broken in next Chrome 40 and Firefox 35 (https://github.com/defunctzombie/commonjs-assert/pull/7)

Especially 1.3.0 is necessary before Chrome 40 and Firefox 35 release.