Create repository_spec, awaiting a reasonable external repo to use.

This resolves the pull request on issue #45.
[ci skip]

spec/client_spec.rb

@@ -21,7 +21,7 @@ def response(header)
 
  it "should handle successful response with boolean header" do
  expect(subject).to receive(:request).and_yield response(SPARQL::Client::RESULT_BOOL)
- expect(subject.query(query)).to be_false
+ expect(subject.query(query)).to be_falsey
  end
 
  it "should handle successful response with JSON header" do

spec/repository_spec.rb

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+require File.join(File.dirname(__FILE__), 'spec_helper')
+require 'rdf/spec/repository'
+
+describe SPARQL::Client::Repository do
+ before :each do
+ @repository = SPARQL::Client::Repository.new('http://dydra.com/gkellogg/sparql-client-test/sparql',
+ headers: {'Accept' => 'text/plain'})
+ @repository.clear!
+ end
+
+ # @see lib/rdf/spec/repository.rb in RDF-spec
+ include RDF_Repository
+
+end