Update documentation, dependencies, and version sync for 3.2.

Author: gkellogg

Gemfile

@@ -3,8 +3,13 @@ source "https://rubygems.org"
 # Specify your gem's dependencies in rdf-virtuoso.gemspec
 gemspec
 
-gem "rdf",      github: "ruby-rdf/rdf",      branch: "develop"
-gem "rdf-spec", github: "ruby-rdf/rdf-spec", branch: "develop"
+gem "rdf",       github: "ruby-rdf/rdf",       branch: "develop"
+
+group :development, :test do
+  gem 'rdf-isomorphic', git: "https://github.com/ruby-rdf/rdf-isomorphic",  branch: "develop"
+  gem "rdf-spec",  github: "ruby-rdf/rdf-spec",  branch: "develop"
+  gem "rdf-vocab", github: "ruby-rdf/rdf-vocab", branch: "develop"
+end
 
 group :debug do
   gem "byebug", platforms: :mri

VERSION

@@ -1 +1 @@
-0.2.0
+0.3.0

rdf-virtuoso.gemspec

@@ -1,4 +1,4 @@
-# -*- encoding: utf-8 -*-
+2# -*- encoding: utf-8 -*-
 
 Gem::Specification.new do |s|
   s.name        = 'rdf-virtuoso'
@@ -16,11 +16,11 @@ Gem::Specification.new do |s|
   s.require_paths = ['lib']
 
   s.add_runtime_dependency 'rdf', '~> 3.1'
-  s.add_runtime_dependency 'httparty', '~> 0.18.1'
+  s.add_runtime_dependency 'httparty', '~> 0.20'
   s.add_runtime_dependency 'api_smith', '~> 1.3.0'
 
   s.add_development_dependency 'rspec', '~> 3.10'
-  s.add_development_dependency 'rdf-spec', '~> 3.1'
-  s.add_development_dependency 'rdf-vocab', '~> 3.1'
+  s.add_development_dependency 'rdf-spec', '~> 3.2'
+  s.add_development_dependency 'rdf-vocab', '~> 3.2'
 
 end