Update deps

Gemfile.devtools

@@ -2,26 +2,25 @@
 
 group :development do
   gem 'rake',  '~> 10.0.3'
-  gem 'rspec', '~> 2.12.0'
-  gem 'yard',  '~> 0.8.4.1'
+  gem 'rspec', '~> 2.13.0'
+  gem 'yard',  '~> 0.8.5'
 end
 
 group :yard do
-  gem 'redcarpet', '~> 2.2.2', :platforms => [ :mri, :rbx ]
+  gem 'kramdown', '~> 0.14.2'
 end
 
 group :guard do
   gem 'guard',         '~> 1.6.2'
   gem 'guard-bundler', '~> 1.0.0'
-  gem 'guard-rspec',   '~> 2.3.3'
+  gem 'guard-rspec',   '~> 2.5.0'
 
   # file system change event handling
   gem 'rb-fchange', '~> 0.0.6', :require => false
   gem 'rb-fsevent', '~> 0.9.3', :require => false
   gem 'rb-inotify', '~> 0.9.0', :require => false
 
-  # Remove this one https://github.com/guard/listen/pull/78 is released
-  gem 'listen', '~> 0.7.2', :git => 'https://github.com/guard/listen.git'
+  gem 'listen', '~> 0.7.3'
 
   # notification handling
   gem 'libnotify',               '~> 0.8.0', :require => false
@@ -30,19 +29,20 @@ group :guard do
 end
 
 group :metrics do
-  gem 'flay',      '~> 1.4.3'
-  gem 'flog',      '~> 2.5.3'
-  gem 'reek',      '~> 1.2.13', :git => 'https://github.com/troessner/reek.git', :ref => 'ef77fcecaa21c9ebcbe4d9a79d41b0e70196bf18'
-  gem 'roodi',     '~> 2.2.0'
-  gem 'yardstick', '~> 0.9.2'
+  gem 'backports',       '~> 3.0', '>= 3.1.0'
+  gem 'flay',            '~> 2.1.0'
+  gem 'flog',            '~> 3.2.2'
+  gem 'reek',            '~> 1.3.1', :git => 'https://github.com/troessner/reek.git'
+  gem 'metric_fu-roodi', '~> 2.2.1'
+  gem 'yardstick',       '~> 0.9.4'
 
   platforms :ruby_18, :ruby_19 do
     # this indirectly depends on ffi which does not build on ruby-head
     gem 'yard-spellcheck', '~> 0.1.5'
   end
 
   platforms :mri_19, :rbx do
-#    gem 'mutant', '~> 0.2.16'
+    gem 'mutant', '~> 0.2.20'
   end
 
   platforms :mri_19 do

Rakefile

@@ -2,4 +2,4 @@
 
 require 'devtools'
 
-Devtools.init
+Devtools.init_rake_tasks

spec/shared/idempotent_method_behaviour.rb

@@ -1,5 +1,5 @@
 shared_examples_for 'an idempotent method' do
   it 'is idempotent' do
-    should equal(instance_eval(&self.class.subject))
+    should equal(subject)
   end
 end

virtus.gemspec

@@ -16,8 +16,8 @@ Gem::Specification.new do |gem|
   gem.test_files       = `git ls-files -- {spec}/*`.split("\n")
   gem.extra_rdoc_files = %w[LICENSE README.md TODO.md]
 
-  gem.add_dependency('backports',           '~> 2.8')
+  gem.add_dependency('backports',           [ '~> 3.0', '>= 3.1.0' ])
   gem.add_dependency('descendants_tracker', '~> 0.0.1')
-  gem.add_dependency('adamantium',          '~> 0.0.5')
-  gem.add_dependency('coercible',           '~> 0.1')
+  gem.add_dependency('adamantium',          '~> 0.0.7')
+  gem.add_dependency('coercible',           '~> 0.2')
 end