Update cane to v2.6.1

Author: Chris Hunt

github-auth.gemspec

@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'bundler', '~> 1.5.2'
-  spec.add_development_dependency 'cane', '~> 2.6.0'
+  spec.add_development_dependency 'cane', '~> 2.6.1'
   spec.add_development_dependency 'cane-hashcheck', '~> 1.2.0'
   spec.add_development_dependency 'coveralls', '~> 0.7.0'
   spec.add_development_dependency 'pry', '~> 0.9.12'