Merge pull request #191 from rspec/update_appveyor

Update appveyor script for recent changes

Author: JonRowe

travis/appveyor.yml

@@ -11,20 +11,26 @@ branches:
 # Disable normal Windows builds in favor of our test script.
 build: off
 
+cache:
+  - vendor/bundle
+
 install:
-  - SET PATH=C:\Ruby%ruby_version%\bin;%PATH%
-  - ruby --version
-  - gem --version
-  - gem install bundler -v "!= 1.12.0, != 1.12.1, != 1.12.2, != 1.12.3"
-  - bundler --version
+  - set PATH=C:\Ruby%RUBY_VERSION%\bin;%PATH%
+  - bundle config --local path vendor/bundle
   - bundle install
   - cinst ansicon
 
+before_test:
+  - ruby --version
+  - gem --version
+  - bundle --version
+
 test_script:
   - bundle exec rspec --backtrace
 
 environment:
   matrix:
-    # ruby_version: '20' doesn't work for some reason
-    - ruby_version: '193'
-    - ruby_version: '21'
+    - ruby_version: 193
+    - ruby_version: 200
+    - ruby_version: 21
+    - ruby_version: 22