Merge branch 'supported_ruby_changes'

Closes #1360, #1369

- @KaraAJC updated CI Ruby from 2.2.2 to 2.2.3
- @KaraAJC updated CI Ruby to remove Ruby 1.9.3
- @maurogeorge updated gemspec to require Ruby >= 2.0.0

.travis.yml

@@ -3,10 +3,9 @@ language: ruby
 sudo: false
 
 rvm:
-  - 1.9.3
   - 2.0.0
   - 2.1
-  - 2.2.2
+  - 2.2.3
   - ruby-head
   - rbx-2
 
@@ -26,8 +25,6 @@ env:
 
 matrix:
   exclude:
-  - rvm: 1.9.3
-    env: RAILS_VERSION=master
   - rvm: 2.0.0
     env: RAILS_VERSION=master
   - rvm: 2.1

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 Breaking changes:
 
+- [#1360](https://github.com/rails-api/active_model_serializers/pull/1360)
+  [#1369](https://github.com/rails-api/active_model_serializers/pull/1369) Drop support for Ruby 1.9.3 (@karaAJC, @maurogeorge)
 - [#1131](https://github.com/rails-api/active_model_serializers/pull/1131) Remove Serializer#root_name (@beauby)
 - [#1138](https://github.com/rails-api/active_model_serializers/pull/1138) Introduce Adapter::Base (@bf4)
   * Adapters now inherit Adapter::Base. 'Adapter' is now a module, no longer a class.
@@ -42,6 +44,7 @@ Misc:
 - [#1166](https://github.com/rails-api/active_model_serializers/pull/1166) Prefer methods over instance variables (@bf4)
 - [#1168](https://github.com/rails-api/active_model_serializers/pull/1168) Fix appveyor failure cache not being expired (@bf4)
 - [#1161](https://github.com/rails-api/active_model_serializers/pull/1161) Remove duplicate test helper (@bf4)
+- [#1360](https://github.com/rails-api/active_model_serializers/pull/1360) Update CI to test 2.2.2 -> 2.2.3 (@karaAJC)
 
 ### v0.10.0.rc3 (2015/09/16 15:19 +00:00)
 - [#1129](https://github.com/rails-api/active_model_serializers/pull/1129) Remove SerializableResource.serialize in favor of `.new` (@bf4)

active_model_serializers.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '>= 1.9.3'
+  spec.required_ruby_version = '>= 2.0.0'
 
   rails_versions = '>= 4.0'
   spec.add_runtime_dependency 'activemodel', rails_versions