keith/contacts-cli

In order to workaround https://github.com/keith/contacts-cli/issues/3, I've redirected stderr to `/dev/null` in the contacts script. ``` 35feb2361ea55ddf1e65d5ebe80e06e3b8a2f7f051d1c0b34b51cc9624871591 contacts 1dec757046ae91d1933bd87610f69d26b2d16ba91f2ce26527cfe0ad9a975e38 contacts.tar.gz ```

This updates the source to Swift 3 and statically links the Swift standard library. This means it doesn't matter where your Xcode / Xcode betas are installed, everything should continue working in the future. This also means the executable is larger. ``` 5450a1c216f0493703551f2bc8c2a01317b06d4209f7fcf779964bb485cbb5bf contacts.tar.gz c3562fa929d8c45e5414f493d2804c8297649d0cfaa0c04315d0f10c4bd777a5 contacts ```

Since there's no Swift ABI compatibility, the previous version crashes if you have Swift 2.1 set as the xcode version