Update test suite with Rails 5 and more Rubies

- Update Appraisals file
- Update .travis.yml
  * Add sudo false (container-based, faster)

https://docs.travis-ci.com/user/ci-environment/#Virtualization-environme
nts
  * Test more rubies
  * Test newer things on top
  * Exclude Ruby < 2.2 with Rails 5

Author: JuanitoFatas

.travis.yml

@@ -1,19 +1,30 @@
+sudo: false
 language: ruby
 cache: bundler
 before_install: "gem install bundler"
 rvm:
+  - 2.3.1
+  - 2.2.5
+  - 2.1
+  - 2.0
   - 1.9.3
-  - 2.0.0
-  - 2.1.0
-  - 2.2.0
   - jruby-19mode
   - rbx
 gemfile:
-  - gemfiles/rails_4_0.gemfile
-  - gemfiles/rails_4_1.gemfile
+  - gemfiles/rails_5_0.gemfile
   - gemfiles/rails_4_2.gemfile
+  - gemfiles/rails_4_1.gemfile
+  - gemfiles/rails_4_0.gemfile
 matrix:
   exclude:
+    - rvm: 2.1
+      gemfile: gemfiles/rails_5_0.gemfile
+    - rvm: 2.0
+      gemfile: gemfiles/rails_5_0.gemfile
+    - rvm: 1.9.3
+      gemfile: gemfiles/rails_5_0.gemfile
+    - rvm: jruby-19mode
+      gemfile: gemfiles/rails_5_0.gemfile
     - rvm: 1.9.3
       gemfile: gemfiles/rails_4_1.gemfile
-script: "bundle exec rake test"
+script: "bundle exec rake test"

Appraisals

@@ -8,4 +8,8 @@ end
 
 appraise "rails_4_2" do
   gem "rails", "4.2"
-end
+end
+
+appraise "rails_5_0" do
+  gem "rails", "5.0"
+end

gemfiles/rails_5_0.gemfile

@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rubysl", "~> 2.0", :platforms => :rbx
+gem "minitest", :platforms => :rbx
+gem "html2haml"
+gem "rails", "5.0"
+
+gemspec :path => "../"