Update dependencies

Author: tmilewski

omniauth-ldap.gemspec

@@ -9,10 +9,10 @@ Gem::Specification.new do |gem|
   gem.homepage      = "https://github.com/intridea/omniauth-ldap"
   gem.license       = "MIT"
 
-  gem.add_runtime_dependency     'omniauth', '~> 1.0'
+  gem.add_runtime_dependency     'omniauth', '~> 1.8.1'
   gem.add_runtime_dependency     'net-ldap', '~> 0.16'
-  gem.add_runtime_dependency     'pyu-ruby-sasl', '~> 0.0.3.2'#0.0.3.1 has been yanked
-  gem.add_runtime_dependency     'rubyntlm', '~> 0.3.4'
+  gem.add_runtime_dependency     'pyu-ruby-sasl', '~> 0.0.3.3'
+  gem.add_runtime_dependency     'rubyntlm', '~> 0.6.2'
   gem.add_development_dependency 'rspec', '~> 3.0'
   gem.add_development_dependency 'simplecov'
   gem.add_development_dependency 'rack-test'