Switch to unzip2

[davewasmer]

It appears that the unzip module is abandoned. When using this module, I periodically get invalid signature errors, which appear to originate from the unzip. Looking through the unzip issues shows several other folks with similar issues.

It looks like a fork has fixed at least some of these issues: unzip2. It might be worth switching over.

It looks like it maintains the same API. I would submit a PR with the change, but it looks like you are monkey-patching the unzip stream's .emit() function, so I wanted to check with you first.

[haydenbleasel]

@davewasmer To be honest, I haven't touched this module's code in a while - a couple of other contributors implemented the unzip functionality that broke things and I haven't had the time to fix anything up.

That being said, if you reckon you can fix the unzip issues by switching to the fork that's cool with me, but it looks like his fork hasn't got any of the updates from the original repo's 0.1.10 and 0.1.11 updates.

[haydenbleasel]

Hey @davewasmer, merging this issue into Favicons 4.0. I'd love for you to join in the discussion: #51