doc: update ruby-rails42 to 4.2.11.1

devel/ruby-activesupport42
devel/ruby-activejob42
devel/ruby-activemodel42
databases/ruby-activerecord42
www/ruby-actionview42
www/ruby-actionpack42
mail/ruby-actionmailer42
devel/ruby-railties42
www/ruby-rails42

(taca)