Merge branch 'PHP-7.1'

* PHP-7.1:
  don't backup older deps after upgrades
  update SDK version for AppVeyor

diff --cc .appveyor.yml
index 89c3fbf54febc724c023edd12383d6d50ffd0ae6,581399d06753ab42920492ee7c50df94bc4ab6c0..6312b7a79640968fe74e28314e576dadf8bb7fd2
--- 1/.appveyor.yml
--- 2/.appveyor.yml
+++ b/.appveyor.yml
@@@ -24,8 -24,7 +24,8 @@@ 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-2.0.0
+         PHP_BUILD_SDK_BRANCH: php-sdk-2.0.1
 +        PHP_BUILD_CRT: vc15
          # ext and env setup for tests
          #MYSQL_TEST_PASSWD: Password12!
          #MYSQL_TEST_USER: root

diff --cc appveyor/build_task.bat
index 6b49d244d71a3be99570439776b319d2f3cfc501,ad3fbcdfa3fefff8177148c22ebfaecda94a9a04..fc58929347f23d036829fb8f70ef1a7bc6860617
--- 1/appveyor/build_task.bat
--- 2/appveyor/build_task.bat
+++ b/appveyor/build_task.bat
@@@ -19,7 -19,7 +19,7 @@@ set STABILITY=stagin
  set DEPS_DIR=%PHP_BUILD_CACHE_BASE_DIR%\deps-%BRANCH%-%PHP_SDK_VC%-%PHP_SDK_ARCH%
  rem SDK is cached, deps info is cached as well
  echo Updating dependencies in %DEPS_DIR%
- call phpsdk_deps --update --branch %BRANCH% --stability %STABILITY% --deps %DEPS_DIR% --crt %PHP_BUILD_CRT%
 -call phpsdk_deps --update --no-backup --branch %BRANCH% --stability %STABILITY% --deps %DEPS_DIR%
++call phpsdk_deps --update --no-backup --branch %BRANCH% --stability %STABILITY% --deps %DEPS_DIR% --crt %PHP_BUILD_CRT%
  if %errorlevel% neq 0 exit /b 3
  
  call buildconf.bat --force