Merge pull request #28 from IBM-Swift/311update

Updated .swift-version, Package.pins, and got tests to compile

Update to Swift 3.1 (#24)

* Update to Swift 3.1

* Update date in copyright

Update to BlueSSL 0.12 (#19)

* Update to BlueSSL 0.12

* Update TravisCI

* Change to XCode8

Update Package.swift

Update README.md

Swift 3 release (#18)

* Swift 3 release

* Platform badges

8/18

Merge pull request #12 from jmarcelino/test-password-string

Fix for empty strings (e.g. in password)

Merge pull request #11 from IBM-Swift/8/15-migration

8/15 migration

Update README.md