4.0 version

Author: Sreejita Biswas

.travis.yml

@@ -4,9 +4,6 @@ cache:
 install:
 - bundle install
 rvm:
-- 2.0
-- 2.1
-- 2.2
 - 2.3.0
 - 2.4.1
 notifications:
@@ -29,9 +26,6 @@ deploy:
   on:
     tags: true
     all_branches: true
-    rvm: 2.0
-    rvm: 2.1
-    rvm: 2.2
     rvm: 2.3.0
     rvm: 2.4.1
     repo: sreejita-biswas/sensu-plugins-ssl

sensu-plugins-ssl.gemspec

@@ -25,13 +25,13 @@ Gem::Specification.new do |s|
   s.platform               = Gem::Platform::RUBY
   s.post_install_message   = 'You can use the embedded Ruby by setting EMBEDDED_RUBY=true in /etc/default/sensu'
   s.require_paths          = ['lib']
-  s.required_ruby_version  = '>= 2.0.0'
+  s.required_ruby_version  = '>= 2.1.0'
 
   s.summary                = 'Sensu plugins for SSL'
   s.test_files             = s.files.grep(%r{^(test|spec|features)/})
   s.version                = SensuPluginsSSL::Version::VER_STRING
 
-  s.add_runtime_dependency 'sensu-plugin', '~> 1.2'
+  s.add_runtime_dependency 'sensu-plugin', '~> 4.0'
 
   s.add_development_dependency 'bundler',                   '~> 1.7'
   s.add_development_dependency 'codeclimate-test-reporter', '~> 0.4'