Improvements for using the project with Carthage

- Add Carthage Checkouts to gitignore. This is needed in order
to allow sharing of the Swinject framework in containing
apps.
- Manually copy over configuration files into the repo. The
same thing was done for SwinjectStoryboard.

.gitignore

@@ -48,7 +48,7 @@ Packages/
 # Carthage
 #
 # Add this line if you want to avoid checking in source code from Carthage dependencies.
-# Carthage/Checkouts
+Carthage/Checkouts
 
 Carthage/Build
 

.travis.yml

@@ -34,6 +34,10 @@ matrix:
     - env: JOB="XCODE" DEST="OS=2.2,name=Apple Watch - 42mm" SCHEME="SwinjectAutoregistration-watchOS" SDK="watchsimulator" ACTION="build"
     - env: JOB="XCODE" DEST="OS=3.2,name=Apple Watch - 42mm" SCHEME="SwinjectAutoregistration-watchOS" SDK="watchsimulator" ACTION="build"
     - env: JOB="XCODE" DEST="OS=4.0,name=Apple Watch - 42mm" SCHEME="SwinjectAutoregistration-watchOS" SDK="watchsimulator" ACTION="build"
+before_install:
+  - curl -L -O https://github.com/Carthage/Carthage/releases/download/0.17.2/Carthage.pkg
+  - sudo installer -pkg Carthage.pkg -target /
+  - carthage bootstrap --no-use-binaries --no-build
 script:
   - set -o pipefail
   - open -b com.apple.iphonesimulator # Workaround https://github.com/travis-ci/travis-ci/issues/3040

Cartfile.private

@@ -1,3 +1,2 @@
 github "Quick/Quick" ~> 1.1
 github "Quick/Nimble" ~> 7.0
-github "jspahrsummers/xcconfigs" ~> 0.10