Reasons to prohibit this._skipBytes(0, ...) ?

https://github.com/TooTallNate/node-stream-parser/blob/v0.3.1/index.js#L117
1. That's not convenient, because requires additional wrapper to separate 0-case.
   - example - you need to skip record [ length, xx, xx, xx ], when length = 0.
2. That's dangerous, because throws in callback.

Can such asserts be skipped or disabled via options?
