Release Perhaps version 0.0.2.
Release Perhaps version 0.0.2.

 * Finish rename of unit test.
 * Rename unit test.
 * Add `vivified` property.
 * Update `package.json` keywords.
 * Import Promise class.
 * Upgrade Proof to 1.x.
 * Use latest version of test script.
 * Published Mingle accidentally.

Closes #2.

bigeasy/perhaps,bigeasy/perhaps