Update Go AWS SDK to the latest version

vendor/github.com/aws/aws-sdk-go/.travis.yml

@@ -2,28 +2,55 @@ language: go
 
 sudo: required
 
+os:
+    - linux
+    - osx
 go:
-  - 1.5.x
-  - 1.6.x
-  - 1.7.x
-  - 1.8.x
-  - 1.9.x
-  - 1.10.x
-  - tip
-    
-# Use Go 1.5's vendoring experiment for 1.5 tests.
-env:
-  - GO15VENDOREXPERIMENT=1
-
-install:
-  - make get-deps
-
-script:
-  - make unit-with-race-cover
+    - 1.6.x
+    - 1.7.x
+    - 1.8.x
+    - 1.9.x
+    - 1.10.x
+    - 1.11.x
+    - 1.12.x
+    - tip
 
 matrix:
-  allow_failures:
-    - go: tip
+    allow_failures:
+        - go: tip
+        - os: windows
+    exclude:
+          # OSX 1.6.4 is not present in travis.
+          # https://github.com/travis-ci/travis-ci/issues/10309
+        - go: 1.6.x
+          os: osx
+    include:
+        - os: windows
+          go: 1.12.x
+        - os: linux
+          go: 1.5.x
+          # Use Go 1.5's vendoring experiment for 1.5 tests.
+          env: GO15VENDOREXPERIMENT=1
+
+before_install:
+  - if [ "$TRAVIS_OS_NAME" = "windows" ]; then choco install make; fi
+
+script:
+  - if [ "$TRAVIS_OS_NAME" = "windows" ]; then
+      make get-deps;
+      make unit-no-verify;
+    else
+      if [ $TRAVIS_GO_VERSION == "1.10.x" ] ||
+      [ $TRAVIS_GO_VERSION == "1.11.x" ] ||
+      [ $TRAVIS_GO_VERSION == "1.12.x" ] ||
+      [ $TRAVIS_GO_VERSION == "tip" ]; then
+          make get-deps;
+          make ci-test;
+      else
+          make get-deps-tests;
+          make unit-old-go-race-cover;
+      fi
+    fi
 
 branches:
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