Update minumum ruby version to 2.2.2. See ruby-rdf/rdf#307.

Author: gkellogg

.travis.yml

@@ -4,17 +4,15 @@ script: "bundle exec rspec spec"
 env:
   - CI=true
 rvm:
-  - 2.0
-  - 2.1
-  - 2.2.4
-  - 2.3.0
-  - jruby-9.0.4.0
-  - rbx-2
+  - 2.2.5
+  - 2.3.1
+  - jruby-9.0.5.0
+  - rbx
 cache: bundler
 sudo: false
 matrix:
   allow_failures:
-    - rvm: rbx-2
-    - rvm: jruby-9.0.4.0
+    - rvm: rbx
+    - rvm: jruby-9.0.5.0
 
 

README.md

@@ -274,7 +274,7 @@ Note, the API method signatures differed in versions before 1.0, in that they al
   * {JSON::LD::Writer}
 
 ## Dependencies
-* [Ruby](http://ruby-lang.org/) (>= 2.0)
+* [Ruby](http://ruby-lang.org/) (>= 2.2.2)
 * [RDF.rb](http://rubygems.org/gems/rdf) (>= 2.0)
 * [JSON](https://rubygems.org/gems/json) (>= 1.5)
 

json-ld.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |gem|
   gem.test_files            = Dir.glob('spec/**/*.rb') + Dir.glob('spec/test-files/*')
   gem.has_rdoc              = false
 
-  gem.required_ruby_version = '>= 2.0'
+  gem.required_ruby_version = '>= 2.2.2'
   gem.requirements          = []
   gem.add_runtime_dependency     'rdf',             '~> 2.0'
   gem.add_runtime_dependency     'multi_json',      '~> 1.11'

lib/json/ld/format.rb

@@ -44,7 +44,7 @@ def self.detect(sample)
 
     ##
     # Hash of CLI commands appropriate for this format
-    # @return [Hash{Symbol => Lambda(Array, Hash)}]
+    # @return [Hash{Symbol => Hash}]
     def self.cli_commands
       {
         expand: {