Allow newer jwt versions in newer versions of Ruby

Author: sferik

Gemfile

@@ -1,5 +1,6 @@
 source 'https://rubygems.org'
 
+gem 'jwt', '< 1.5.2', :platforms => [:jruby_18, :ruby_18]
 gem 'rake'
 gem 'rdoc'
 

oauth2.gemspec

@@ -5,7 +5,7 @@ require 'oauth2/version'
 
 Gem::Specification.new do |spec|
   spec.add_dependency 'faraday', ['>= 0.8', '< 0.10']
-  spec.add_dependency 'jwt', '~> 1.0', '< 1.5.2'
+  spec.add_dependency 'jwt', '~> 1.0'
   spec.add_dependency 'multi_json', '~> 1.3'
   spec.add_dependency 'multi_xml', '~> 0.5'
   spec.add_dependency 'rack', ['>= 1.2', '< 3']