Merge branch 'PHP-7.1' into PHP-7.2

* PHP-7.1:
  Update binary tools SDK branch for AppVeyor

diff --cc .appveyor.yml
index 333ab55d763560d6225c6fb8d92857860e6f4a1f,0009ef2b016cdbd7f358a10a275c6a80bfdfc483..9f6116885b9de6d3eec25c0cbc23c76fb933a93e
--- 1/.appveyor.yml
--- 2/.appveyor.yml
+++ b/.appveyor.yml
@@@ -23,8 -23,7 +23,8 @@@ environment
          PHP_BUILD_CACHE_BASE_DIR: c:\build-cache  
          PHP_BUILD_OBJ_DIR: c:\obj
          PHP_BUILD_CACHE_SDK_DIR: c:\build-cache\sdk
-         PHP_BUILD_SDK_BRANCH: php-sdk-2.1.0
+         PHP_BUILD_SDK_BRANCH: php-sdk-2.1.1
 +        PHP_BUILD_CRT: vc15
          # ext and env setup for tests
          #MYSQL_TEST_PASSWD: Password12!
          #MYSQL_TEST_USER: root