Return URI query parameters as hash

uri_query_params.rb

class URI::Generic
  def query_params
    Hash[(query || '').split('&').collect{ |a| a.split('=') }.collect{ |b| [URI.unescape(b[0]), b[1].nil? ? nil : URI.unescape(b[1])] }]
  end
  
  alias_method :query_parameters, :query_params
end