Update travis rubies

.travis.yml

@@ -1,14 +1,15 @@
 language: ruby
 cache: bundler
+dist: trusty
 env:
   - "RAILS_VERSION=4.2.6"
   - "RAILS_VERSION=master"
 rvm:
-  - 2.1.8
-  - 2.2.4
-  - 2.3.0
-  - jruby-9.0.5.0
-  - rbx-3.13
+  - 2.2.7
+  - 2.3.4
+  - 2.4.1
+  - jruby-9.1.12.0
+  - rbx-3.71
 before_install:
   - gem update bundler
 matrix:

CHANGELOG.md

@@ -1,7 +1,7 @@
 # CHANGELOG
 
 ## 0.5.0
-  * Add requirement ruby >= 2.1
+  * Add requirement ruby >= 2.2
   * Drop support for Rails < 4.2
   * Replace `thread_safe` with `concurrent_ruby`
   * Remove custom responder

Gemfile

@@ -24,12 +24,9 @@ end
 
 gem 'plist'
 
-platforms :ruby do
-  gem 'oj'
-end
-
 platforms :mri do
   gem 'libxml-ruby'
+  gem 'oj'
 end
 
 platforms :jruby do

README.md

@@ -4,7 +4,7 @@ RABL (Ruby API Builder Language) is a ruby templating system for rendering resou
 
 rabl-rails is **faster** and uses **less memory** than the standard rabl gem while letting you access the same features. There are some slight changes to do on your templates to get this gem to work but it should't take you more than 5 minutes.
 
-rabl-rails only targets **Rails 4.2+ application** and is compatible with mri 2.1+, jRuby and rubinius.
+rabl-rails only targets **Rails 4.2+ application** and is compatible with mri 2.2+, jRuby and rubinius.
 
 ## Installation
 

rabl-rails.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.description = "Fast Rails 4+ templating system with JSON, XML and PList support"
   s.license     = 'MIT'
 
-  s.required_ruby_version     = '>= 2.1.0'
+  s.required_ruby_version     = '>= 2.2.0'
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- test/*`.split("\n")