Change gemspec dependencies to '>= 1.99', '< 3' in prep for 2.0.0.beta release.

Author: gkellogg

rdf-rdfxml.gemspec

@@ -20,25 +20,25 @@ Gem::Specification.new do |gem|
   gem.require_paths         = %w(lib)
   gem.has_rdoc              = false
 
-  gem.required_ruby_version = '>= 2.0.0'
+  gem.required_ruby_version = '>= 2.0'
   gem.requirements          = []
 
-  gem.add_runtime_dependency     'rdf',             '~> 1.99'
-  gem.add_runtime_dependency     'rdf-rdfa',        '~> 1.99'
-  gem.add_runtime_dependency     'rdf-xsd',         '~> 1.99'
+  gem.add_runtime_dependency     'rdf',             '>= 1.99', '< 3'
+  gem.add_runtime_dependency     'rdf-rdfa',        '>= 1.99', '< 3'
+  gem.add_runtime_dependency     'rdf-xsd',         '>= 1.99', '< 3'
   gem.add_runtime_dependency     'htmlentities',    '~> 4.3'
 
   #gem.add_development_dependency 'nokogiri' ,       '>= 1.6.1' # conditionally done in Gemfile
   #gem.add_development_dependency 'equivalent-xml' , '~> 0.2' # conditionally done in Gemfile
   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',         '~> 1.99'
+  gem.add_development_dependency 'json-ld',         '>= 1.99', '< 3'
   gem.add_development_dependency 'rspec',           '~> 3.2'
   gem.add_development_dependency 'rspec-its',       '~> 1.0'
-  gem.add_development_dependency 'rdf-isomorphic',  '~> 1.99'
-  gem.add_development_dependency 'rdf-turtle',      '~> 1.99'
-  gem.add_development_dependency 'rdf-spec',        '~> 1.99'
-  gem.add_development_dependency 'rdf-vocab',       '~> 0.8'
+  gem.add_development_dependency 'rdf-isomorphic',  '>= 1.99', '< 3'
+  gem.add_development_dependency 'rdf-turtle',      '>= 1.99', '< 3'
+  gem.add_development_dependency 'rdf-spec',        '>= 1.99', '< 3'
+  gem.add_development_dependency 'rdf-vocab',       '>= 0.8'
   gem.add_development_dependency 'yard' ,           '~> 0.8'
 
   # Rubinius has it's own dependencies