new swift preview

.swift-version

@@ -1 +1 @@
-swift-DEVELOPMENT-SNAPSHOT-2016-05-09-a
+3.0

.travis.yml

@@ -6,10 +6,9 @@ os:
 language: generic
 sudo: required
 dist: trusty
-osx_image: xcode7.3
+osx_image: xcode8
 install:
-  - eval "$(curl -sL https://raw.githubusercontent.com/Zewo/Zewo/5254525d9da56df29346fd76e99529c22034d61d/Scripts/install-swiftenv.sh)"
-  - bash ./setup_env.sh
+  - eval "$(curl -sL https://raw.githubusercontent.com/Zewo/Zewo/master/Scripts/install-swift.sh)"
 script:
   - swift build --fetch # clones all dependencies
   - rm -rf Packages/*/Tests # deletes dependency's tests until duplicate Package.tests issue can be resolved in SPM. At that point, remove.