Updated all gem dependencies to the latest version.

Author: jdantonio

Gemfile

@@ -6,22 +6,22 @@ gemspec name: 'concurrent-ruby-edge'
 group :development do
   gem 'rake', '~> 10.4.2'
   gem 'rake-compiler', '~> 0.9.5'
-  gem 'rake-compiler-dock', '~> 0.4.0'
+  gem 'rake-compiler-dock', '~> 0.4.2'
   gem 'gem-compiler', '~> 0.3.0'
   gem 'benchmark-ips', '~> 2.2.0'
 
   # documentation
   gem 'countloc', '~> 0.4.0', :platforms => :mri, :require => false
   gem 'yard', '~> 0.8.7.6', :require => false
-  gem 'inch', '~> 0.6.2', :platforms => :mri, :require => false
-  gem 'redcarpet', '~> 3.2.3', platforms: :mri # understands github markdown
+  gem 'inch', '~> 0.6.3', :platforms => :mri, :require => false
+  gem 'redcarpet', '~> 3.3.2', platforms: :mri # understands github markdown
 end
 
 group :testing do
-  gem 'rspec', '~> 3.2.0'
-  gem 'timecop', '~> 0.7.3'
+  gem 'rspec', '~> 3.3.0'
+  gem 'timecop', '~> 0.7.4'
 
   # Coverage
   gem 'simplecov', '~> 0.10.0', :require => false
-  gem 'coveralls', '~> 0.8.1', :require => false
+  gem 'coveralls', '~> 0.8.2', :require => false
 end