0.12.1: Fix Package open-swift/C7 -> open-swift/C7.git (#19)

Avoid package errrors with fatal: destination path already exists 
and is not an empty directory.

0.12.0: Use C7 JSON, Update to Xcode beta 6, Remove StructuredData (#18)

* use C7 JSON

* Update to Xcode beta 6, Remove StructuredData

* Fix tests

* Update .travis.yml

0.8.0

Bump dependencies

0.7.1

Update .swift-version

JSON 0.7

Adds support for the latest snapshot May 3rd (05-03-a)

0.6.0

Updated Swift 04-25 (#15)