Update Travis-CI configuration to Xcode 8.2.

.travis.yml

@@ -3,7 +3,7 @@ branches:
     - master
 language: objective-c
 os: osx
-osx_image: xcode7.3
+osx_image: xcode8.2
 env:
   matrix:
     - TEST_TYPE=iOS
@@ -22,7 +22,7 @@ script:
 - |
   if [ "$TEST_TYPE" = "iOS" ]; then
     set -o pipefail
-    xcodebuild test -workspace FBKVOController.xcworkspace -scheme FBKVOController -sdk iphonesimulator -destination "platform=iOS Simulator,name=iPhone 4s" -destination "platform=iOS Simulator,name=iPhone 6 Plus" GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=YES GCC_GENERATE_TEST_COVERAGE_FILES=YES | xcpretty -c
+    xcodebuild test -workspace FBKVOController.xcworkspace -scheme FBKVOController -sdk iphonesimulator -destination "platform=iOS Simulator,OS=latest,name=iPhone 4s" -destination "platform=iOS Simulator,OS=latest,name=iPad Air 2" GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=YES GCC_GENERATE_TEST_COVERAGE_FILES=YES | xcpretty -c
   elif [ "$TEST_TYPE" = CocoaPods ]; then
     pod lib lint KVOController.podspec
     pod lib lint --use-libraries KVOController.podspec