Add missing json dependency for rdoc in Rails 4.1 and 4.2 failing in TravisCI

Appraisals

@@ -60,6 +60,7 @@ appraise '4.1' do
   gem 'jbuilder', '~> 2.0'
   gem 'sass-rails', '~> 4.0.3'
   gem 'sdoc', '~> 0.4.0'
+  gem 'json', '~> 1.4'
   gem 'bcrypt', '~> 3.1.7'
   gem 'protected_attributes', "~> 1.0.6"
   gem 'spring'
@@ -71,9 +72,8 @@ appraise '4.2' do
   gem 'sass-rails', '~> 5.0'
   gem 'coffee-rails', '~> 4.1.0'
   gem 'jbuilder', '~> 2.0'
-  # gem 'sdoc', '~> 0.4.0'
+  gem 'json', '~> 1.4'
   gem 'bcrypt', '~> 3.1.7'
-  # gem 'spring'
   gem 'protected_attributes', "~> 1.0.6"
 end
 

gemfiles/4.1.gemfile

@@ -35,4 +35,5 @@ gem "minitest-reporters"
 gem "rails", "~> 4.1.0"
 gem "jbuilder", "~> 2.0"
 gem "sass-rails", "~> 4.0.3"
+gem "json", "~> 1.4"
 gem "bcrypt", "~> 3.1.7"

gemfiles/4.1.gemfile.lock

@@ -113,7 +113,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.5.0)
-    rdoc (4.2.0)
+    rdoc (4.3.0)
     redcarpet (3.3.2)
     rspec (3.4.0)
       rspec-core (~> 3.4.0)
@@ -191,6 +191,7 @@ DEPENDENCIES
   jdbc-sqlite3
   jquery-rails
   jruby-openssl
+  json (~> 1.4)
   minitest-reporters
   pg
   protected_attributes (~> 1.0.6)

gemfiles/4.2.gemfile

@@ -35,4 +35,5 @@ gem "minitest-reporters"
 gem "rails", "~> 4.2.0"
 gem "sass-rails", "~> 5.0"
 gem "jbuilder", "~> 2.0"
+gem "json", "~> 1.4"
 gem "bcrypt", "~> 3.1.7"

gemfiles/4.2.gemfile.lock

@@ -138,7 +138,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.5.0)
-    rdoc (4.2.0)
+    rdoc (4.3.0)
     redcarpet (3.3.2)
     rspec (3.4.0)
       rspec-core (~> 3.4.0)
@@ -214,6 +214,7 @@ DEPENDENCIES
   jdbc-sqlite3
   jquery-rails
   jruby-openssl
+  json (~> 1.4)
   minitest-reporters
   pg
   protected_attributes (~> 1.0.6)