Update for Swift 3 Final

* Fix diagnostics
* Remove Swift2 code (close #2)
* Bump version to 1.0
8 jobs for master in 14 minutes and 20 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #5845
autoscale-linux
linux

00:14:20

passed #5843
xcode8 openswift atbuild atpm
osx

00:00:21

failed #5844
xcode8 openswift atbuild atpm
osxxcode

00:00:05

 
  Package
skipped #5846
autoscale-linux
documentation
skipped #5850
xcode8 openswift atbuild package-framework atpm
ioscorepackage
skipped #5849
autoscale-linux
linuxtoolpackage
skipped #5847
xcode8 openswift atbuild package-framework atpm
osxcorepackage
skipped #5848
xcode8 openswift atbuild package-homebrew atpm
osxtoolpackage
 
Name Stage Failure
failed
osxxcode Test There is an unknown failure, please try again
Completed task Caroline.coretest-gen.
Built package Caroline.
$ atbuild coretest --toolchain xcode-beta
enabling overlays ["atbuild.platform.osx", "atbuild.platform.mac", "atbuild.configuration.debug"]
Building package Caroline...
Running task Caroline.core with overlays [] for platform osx
fatal error: Can't find a path for swiftc: file attools/src/PlatformPaths.swift, line 326
bash: line 44: 16745 Illegal instruction: 4 atbuild coretest --toolchain xcode-beta
ERROR: Build failed: exit status 1