Remove VS2017 from exclude: recipe. Remove unneeded comments

.appveyor.yml

@@ -3,11 +3,8 @@
 #  I have to admit its a bit complex and I don't fully understand it.
 
 version: 1.0.{build}
-clone_depth: 3
-
-# Remote debugging through RDP
-# init:
-#  - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+clone_depth: 1
+skip_tags: true
 
 configuration:
 
@@ -39,7 +36,7 @@ test_script:
 
     copy /y TestScripts\cryptest.vcxproj .
 
-    msbuild /t:Build cryptlib.vcxproj
+    msbuild /t:Build /p:platform=%platform%;configuration=%configuration% cryptlib.vcxproj
 
     msbuild /t:Build /p:platform=%platform%;configuration=%configuration% cryptest.vcxproj
 
@@ -60,12 +57,10 @@ matrix:
 #      configuration: Debug
 #    - platform: x64
 #      configuration: Release
-    - image: Visual Studio 2010
-    - image: Visual Studio 2017
 
 notifications:
-  - provider: Email
-    to:
-      - cryptopp-build@googlegroups.com
-        on_build_success: true
-        on_build_failure: true
+    - provider: Email
+      to:
+        - cryptopp-build@googlegroups.com
+      on_build_success: true
+      on_build_failure: true