Update appveyor.yml

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appveyor.yml

@@ -15,8 +15,8 @@ matrix:
     
 image:
   - Visual Studio 2013
-  #- Previous Visual Studio 2015
-  - Previous Visual Studio 2017
+  - Visual Studio 2015
+  - Visual Studio 2017
     
 platform:
   - Win32
@@ -28,22 +28,22 @@ install:
   - set PATH=C:\Ruby24-x64\bin;%PATH%
   - set CMAKE_DEFINES -DASSIMP_WERROR=ON
   - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2013" set CMAKE_GENERATOR_NAME=Visual Studio 12 2013
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Previous Visual Studio 2015" set CMAKE_GENERATOR_NAME=Visual Studio 14 2015
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Previous Visual Studio 2017" set CMAKE_GENERATOR_NAME=Visual Studio 15 2017
+  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2015" set CMAKE_GENERATOR_NAME=Visual Studio 14 2015
+  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2017" set CMAKE_GENERATOR_NAME=Visual Studio 15 2017
   - if "%platform%"=="x64" set CMAKE_GENERATOR_NAME=%CMAKE_GENERATOR_NAME% Win64
   - cmake %CMAKE_DEFINES% -G "%CMAKE_GENERATOR_NAME%"
   - set PATH=%PATH%;"C:\\Program Files (x86)\\Inno Setup 5"
   - ps: Invoke-WebRequest -Uri https://download.microsoft.com/download/5/7/b/57b2947c-7221-4f33-b35e-2fc78cb10df4/vc_redist.x64.exe -OutFile .\packaging\windows-innosetup\vc_redist.x64.exe
   - ps: Invoke-WebRequest -Uri https://download.microsoft.com/download/1/d/8/1d8137db-b5bb-4925-8c5d-927424a2e4de/vc_redist.x86.exe -OutFile .\packaging\windows-innosetup\vc_redist.x86.exe
   
-#cache:
-#  - code\assimp.dir\%CONFIGURATION%
-#  - contrib\zlib\zlibstatic.dir\%CONFIGURATION%
-#  - contrib\zlib\zlib.dir\%CONFIGURATION%
-#  - tools\assimp_cmd\assimp_cmd.dir\%CONFIGURATION%
-#  - tools\assimp_view\assimp_viewer.dir\%CONFIGURATION%
-#  - test\unit.dir\%CONFIGURATION%
-#  - bin\.mtime_cache
+cache:
+  - code\assimp.dir\%CONFIGURATION%
+  - contrib\zlib\zlibstatic.dir\%CONFIGURATION%
+  - contrib\zlib\zlib.dir\%CONFIGURATION%
+  - tools\assimp_cmd\assimp_cmd.dir\%CONFIGURATION%
+  - tools\assimp_view\assimp_viewer.dir\%CONFIGURATION%
+  - test\unit.dir\%CONFIGURATION%
+  - bin\.mtime_cache
   
 before_build:
   - ruby scripts\AppVeyor\mtime_cache -g scripts\AppVeyor\cacheglobs.txt -c bin\.mtime_cache\cache.json