Require Ruby >= 2.2.2.

Remove wirble from Gemfile, as dependency-ci objects that it has no license and it's not really neccessary.

Author: gkellogg

.travis.yml

@@ -4,14 +4,12 @@ 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-9.1.2.0
+  - rbx
 cache: bundler
 sudo: false
 matrix:
   allow_failures:
-    - rvm: rbx-2
+    - rvm: rbx

Gemfile

@@ -6,7 +6,6 @@ gem 'rdf',  github: "ruby-rdf/rdf",  branch: "develop"
 gem 'ebnf', github: "gkellogg/ebnf", branch: "develop"
 
 group :debug do
-  gem "wirble"
   gem "byebug", platforms: :mri
 end
 

README.md

@@ -24,7 +24,7 @@ This gem implements the [LD Patch][] specification with a couple of changes and/
 * 100% free and unencumbered [public domain](http://unlicense.org/) software.
 * Complete [Linked Data Patch Format][LD Patch] parsing and execution
 * Implementation Report: {file:etc/earl.html EARL}
-* Compatible with Ruby >= 2.0.0.
+* Compatible with Ruby >= 2.2.2.
 
 ## Documentation
 Full documentation available on [Rubydoc.info][LD-Patch doc]
@@ -60,7 +60,7 @@ The parser takes branch and follow tables generated from the [LD Patch Grammar](
 
 ## Dependencies
 
-* [Ruby](http://ruby-lang.org/) (>= 2.0.0)
+* [Ruby](http://ruby-lang.org/) (>= 2.2.2)
 * [RDF.rb](http://rubygems.org/gems/rdf) (~> 2.0)
 * [EBNF][] (~> 1.0)
 * [SPARQL][] (~> 2.0)

ld-patch.gemspec

@@ -22,7 +22,7 @@ Gem::Specification.new do |gem|
     Implements the W3C Linked Data Patch Format and operations for RDF.rb.
     Makes use of the SPARQL gem for performing updates.)
 
-  gem.required_ruby_version      = '>= 2.0.0'
+  gem.required_ruby_version      = '>= 2.2.2'
   gem.requirements               = []
   gem.add_runtime_dependency     'rdf',               '~> 2.0'
   gem.add_runtime_dependency     'ebnf',              '~> 1.0', '>= 1.0.1'