= New Features

* The render plugin :escape option value can now be a string or an
  array of strings, and then the plugin will will only add the
  :escape template option for those specific template engines given.
  By default, the :escape plugin option adds the :escape template
  option for all engines, which breaks the usage with some engines
  (such as the rcsv engine).

* The convert! and convert_each! methods in the typecast_params plugin
  now support a :skip_missing option to support not storing missing
  parameters:

    typecast_params.convert! do |tp|
      tp.int('missing')
    end
    # => {'missing'=>nil}
    typecast_params.convert!(skip_missing: false) do |tp|
      tp.int('missing')
    end
    # => {}
