Nuke old Rubies from CI configuration

.travis.yml

@@ -19,25 +19,14 @@ install:
 
 rvm:
   - jruby
-  - 1.9.3
+  - 2.2.5
-  - 2.0.0
+  - 2.3.3
-  - 2.1
+  - 2.4.0
-  - 2.2
-  - 2.3.1
   - rbx
 
 matrix:
   allow_failures:
     - rvm: rbx
-      os: osx
-  exclude:
-    # Binaries for these rubies aren't available on OS X :<
-    - rvm: 2.2
-      os: osx
-    - rvm: 2.3.1
-      os: osx
-    - rvm: jruby
-      os: osx
   fast_finish: true
 
 notifications:

Gemfile

@@ -2,10 +2,6 @@ source 'https://rubygems.org'
 
 gemspec
 
-platforms :mingw_19, :ruby_19 do
-  gem 'json', '~> 2.0'
-end
-
 group :benchmarking do
   gem 'ox', :platforms => [:mri, :rbx]
   gem 'nokogiri'

appveyor.yml

@@ -10,8 +10,8 @@ install:
   - SET PATH=C:\ragel;%PATH%
   - ruby --version
   - gem --version
-  - appveyor DownloadFile https://rubygems.org/downloads/bundler-1.9.0.gem -FileName bundler-1.9.0.gem
+  - appveyor DownloadFile https://rubygems.org/downloads/bundler-1.13.7.gem -FileName bundler-1.13.7.gem
-  - gem install bundler-1.9.0.gem --local --quiet --no-ri --no-rdoc
+  - gem install bundler-1.13.7.gem --local --quiet --no-ri --no-rdoc
   - bundle install --retry 3
 
 build: off
@@ -21,12 +21,12 @@ test_script:
 
 environment:
   matrix:
-    - ruby_version: "193"
-    - ruby_version: "200"
-    - ruby_version: "21"
-    - ruby_version: "21-x64"
     - ruby_version: "22"
     - ruby_version: "22-x64"
+    - ruby_version: "23"
+    - ruby_version: "23-x64"
+    - ruby_version: "24"
+    - ruby_version: "24-x64"
 
 skip_tags: true