Add support xCode 8

[mvyrko]

Now, I'm working in xCode 8 and your pod is unbuildable.

[mostafaberg]

Just to weigh in , came here to open an issue to the same problem, I have sent now two PRs for each new version of Swift in XCode 8, you might be able to update your podFile to use those "branches" somehow to use it, it works locally for me, notice the Travis testing fails, but that's only because travis is building on XCode 7 not 8, tests pass locally on XCode 8

Swift 2.3 PR
Swift 3 PR

[mvyrko]

Thank you

[suchtomwow]

+1 to this. This blog post contains helpful tips for migrating open source libraries.

[nick3389]

pod 'Zip', :git => 'https://github.com/marmelroy/Zip.git', :branch => 'swift2.3'

is this ok?

[marmelroy]

Official Swift 3 version released as 0.5.