Try to download and unpack a Vim console binary for AppVeyor

.appveyor.yml

@@ -1,20 +1,18 @@
 ---
-install:
-  # Stop git from changing newlines
-  - git config --global core.autocrlf input
-  # Set up the build environment
-  - '"C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd"
-    /x64 /release'
-  # Build Vim
-  - cd C:\
-  - git clone https://github.com/vim/vim
-  - cd vim
-  - git checkout v8.0.0027
-  - cd src
-  - 'nmake -f Make_mvc.mak CPU=AMD64 OLE=no GUI=no IME=yes MBYTE=yes
-    ICONV=yes DEBUG=no FEATURES=NORMAL'
-
 clone_depth: 10
 
+init:
+  # Stop git from changing newlines
+  - git config --global core.autocrlf input
+
+install:
+  # Download and unpack Vim
+  - cd C:\
+  - ps: 'Invoke-WebRequest ftp://ftp.vim.org/pub/vim/pc/vim80-586w32.zip
+    -OutFile C:\vim.zip'
+  - ps: Add-Type -A System.IO.Compression.FileSystem
+  - ps: "[IO.Compression.ZipFile]::ExtractToDirectory('vim.zip', 'vim')"
+
 test_script:
+  - C:\vim\vim80\vim.exe --version
   - echo hello world