Update RuboCop Rails to 2.10 (#35207).

git-svn-id: http://svn.redmine.org/redmine/trunk@20989 e93f8b46-1217-0410-a6f0-8f06a7374b81

.rubocop.yml

@@ -118,6 +118,9 @@ Rails/BulkChangeTable:
     - 'db/migrate/20120714122200_add_workflows_rule_fields.rb'
     - 'db/migrate/20131214094309_remove_custom_fields_min_max_length_default_values.rb'
 
+Rails/EnvironmentVariableAccess:
+  Enabled: false
+
 Rails/HelperInstanceVariable:
   Enabled: false
 

Gemfile

@@ -94,7 +94,7 @@ group :test do
   # RuboCop
   gem 'rubocop', '~> 1.14.0'
   gem 'rubocop-performance', '~> 1.11.0'
-  gem 'rubocop-rails', '~> 2.9.0'
+  gem 'rubocop-rails', '~> 2.10.1'
 end
 
 local_gemfile = File.join(File.dirname(__FILE__), "Gemfile.local")