Add Travis CI (alshedivat#21)

* Add Travis CI

* Add build status badge

Author: alshedivat

.travis.yml

@@ -0,0 +1,19 @@
+language: ruby
+rvm:
+  - 2.4.1
+
+# Assume bundler is being used, therefore
+# the `install` step will run `bundle install` by default.
+script: ./bin/cibuild
+
+env:
+  global:
+  - NOKOGIRI_USE_SYSTEM_LIBRARIES=true # speeds up installation of html-proofer
+
+sudo: false # route your build to the container-based infrastructure for a faster build
+
+cache: bundler # caching bundler gem packages will speed up build
+
+# Optional: disable email notifications about the outcome of your builds
+notifications:
+  email: false

README.md

@@ -1,5 +1,6 @@
 # al-folio
 
+[![build status](https://travis-ci.org/alshedivat/al-folio.svg?branch=master)](https://travis-ci.org/alshedivat/al-folio)
 [![demo](https://img.shields.io/badge/theme-demo-brightgreen.svg)](https://alshedivat.github.io/al-folio/)
 [![license](https://img.shields.io/github/license/mashape/apistatus.svg?maxAge=2592000)](https://github.com/alshedivat/al-folio/blob/master/LICENSE)
 [![gitter](https://badges.gitter.im/alshedivat/al-folio.svg)](https://gitter.im/alshedivat/al-folio?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
@@ -104,4 +105,4 @@ Style improvements and bug fixes are especially welcome.
 
 ## License
 
-The theme is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
+The theme is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

_config.yml

@@ -74,8 +74,9 @@ news_limit: 5
 markdown: kramdown
 highlighter: pygments
 
-# Includes
+# Includes & excludes
 include: ['_pages']
+exclude: [vendor]
 
 # Plug-ins
 plugins:

bin/cibuild

@@ -0,0 +1 @@
+bundle exec jekyll build