add test framework, check broken links

.gitignore

@@ -1 +1,3 @@
+.jekyll-metadata
+Gemfile.lock
 _site

.travis.yml

@@ -0,0 +1,23 @@
+#bootstrap and build
+before_script: "./script/bootstrap"
+script: "./script/cibuild"
+
+#environment
+language: ruby
+rvm:
+  - 2.0.0
+
+branches:
+  only:
+    - gh-pages
+    - /.*/
+
+notifications:
+  email: false
+
+env:
+  global:
+    - NOKOGIRI_USE_SYSTEM_LIBRARIES=true
+
+sudo: false
+cache: bundler

Gemfile

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+source 'https://rubygems.org'
+
+require 'json'
+require 'open-uri'
+versions = JSON.parse(open('https://pages.github.com/versions.json').read)
+
+gem 'github-pages', versions['github-pages']
+
+group :test do
+  gem 'html-proofer', '~> 3.0'
+  gem 'rake'
+  gem 'rspec'
+  gem 'nokogiri'
+end

Rakefile

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+require 'html-proofer'
+require 'rspec/core/rake_task'
+
+task :test do
+  sh 'bundle exec jekyll build'
+  HTMLProofer.check_directory('./_site',
+                              check_html: true,
+                              validation: { ignore_script_embeds: true },
+                              url_swap: { %r{http://opendefinition.org} => '' }).run
+end

script/bootstrap

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+#!/bin/sh
+
+set -e
+
+echo "bundling installin'"
+gem install bundler
+bundle install
+
+echo
+echo "You're all set. Just run script/server!"

script/cibuild

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+#!/bin/sh
+
+set -e
+
+echo "building the site..."
+bundle exec rake test

script/server

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+#!/bin/sh
+
+set -e
+
+echo "spinning up the server..."
+bundle exec jekyll serve --watch --incremental --trace
+
+echo "cleaning up..."
+rm -Rf _site