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* upgraded `ncp` from `~0.4.2` to `^0.5.1`, #58
* upgraded `rimraf` from `~2.2.6` to `^2.2.8`
* upgraded `mkdirp` from `0.3.x` to `^0.5.0`
* added methods `ensureFile()`, `ensureFileSync()`
* added methods `ensureDir()`, `ensureDirSync()` #31
* added `move()` method. From: https://github.com/andrewrk/node-mv