Convert specs to RSpec 2.99.1 syntax with Transpec

This conversion is done by Transpec 2.3.6 with the following command:
    transpec -b true,false

* 406 conversions
    from: obj.should
      to: expect(obj).to

* 245 conversions
    from: == expected
      to: eq(expected)

* 38 conversions
    from: be_true
      to: be true

* 34 conversions
    from: be_false
      to: be false

* 31 conversions
    from: obj.should_not
      to: expect(obj).not_to

* 11 conversions
    from: obj.stub(:message)
      to: allow(obj).to receive(:message)

* 9 conversions
    from: lambda { }.should
      to: expect { }.to

* 4 conversions
    from: lambda { }.should_not
      to: expect { }.not_to

* 2 conversions
    from: pending
      to: skip

* 1 conversion
    from: =~ /pattern/
      to: match(/pattern/)

* 1 conversion
    from: =~ [1, 2]
      to: match_array([1, 2])

* 1 conversion
    from: before { example }
      to: before { |example| example }

* 1 conversion
    from: obj.should_not_receive(:message)
      to: expect(obj).not_to receive(:message)

For more details: https://github.com/yujinakayama/transpec#supported-conversions

.rspec

@@ -1,2 +1,2 @@
 --color
---format=documentation
+--format=documentation

ar-octopus.gemspec

@@ -24,13 +24,18 @@ Gem::Specification.new do |s|
   s.add_dependency 'activerecord', '>= 3.2.0'
   s.add_dependency 'activesupport', '>= 3.2.0'
 
-  s.add_development_dependency 'rake', '>= 0.8.7'
-  s.add_development_dependency 'rspec', '~> 2.99.0'
+  s.add_development_dependency 'appraisal', '>= 0.3.8'
   s.add_development_dependency 'mysql2', '> 0.3'
   s.add_development_dependency 'pg', '>= 0.11.0'
+  s.add_development_dependency 'rake', '>= 0.8.7'
+  s.add_development_dependency 'rspec', '>= 3'
   s.add_development_dependency 'sqlite3', '>= 1.3.4'
-  s.add_development_dependency 'pry-debugger'
-  s.add_development_dependency 'appraisal', '>= 0.3.8'
+
+  if RUBY_VERSION < '2.0.0'
+    s.add_development_dependency 'pry-debugger'
+  else
+    s.add_development_dependency 'pry-byebug'
+  end
 
   s.license = 'MIT'
 end