Add setup

.travis.yml

@@ -12,8 +12,7 @@ env:
     gem install xcpretty -N --no-ri --no-rdoc
 script:
 - |
-    git submodule init
-    git submodule update
+    ./setup.sh
     if [ "$TEST_TYPE" = iOS ]; then
       set -o pipefail
       xcodebuild clean test -workspace Kingfisher.xcworkspace -scheme Kingfisher -destination 'platform=iOS Simulator,name=iPhone 7,OS=10.1' -enableCodeCoverage YES | xcpretty