Querystring-like string to hash via Rack::Utils and ActiveSupport

gistfile1.rb

Rack::Utils.parse_nested_query("foo=bar&ale=good").symbolize_keys
# => {:ale=>"good", :foo=>"bar"}

# Compared to CGI.parse approach:
CGI.parse("foo=bar&ale=good").symbolize_keys
# => {:ale=>["good"], :foo=>["bar"]}