Relax dependency on rspec.

Author: gkellogg

rdf-rdfxml.gemspec

@@ -33,7 +33,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'open-uri-cached', '~> 0.0', '>= 0.0.5'
   gem.add_development_dependency 'spira',           '= 0.0.12'
   gem.add_development_dependency 'json-ld',         '~> 1.1'
-  gem.add_development_dependency 'rspec',           '~> 3.0.0'
+  gem.add_development_dependency 'rspec',           '~> 3.2'
   gem.add_development_dependency 'rspec-its',       '~> 1.0'
   gem.add_development_dependency 'rdf-isomorphic',  '~> 1.1'
   gem.add_development_dependency 'rdf-turtle',      '~> 1.1'