Remove `:disable_with` in favor of `'data-disable-with'` option from `submit_tag`, `button_tag` and `button_to` helpers.

Allow define_attribute_methods to pass multiple values

mailer can be anonymous

Support data: url scheme

Conflicts:
	actionpack/lib/action_view/asset_paths.rb

Custom coders support for ActiveRecord::Store. 

use const_defined? with second argument in AS::Dependencies

Introduced in 0f848dd5.

Ruby prof fixes

Refactor App Generator Test

there is no need in local_const_defined? helper method

remove useless tests for Range#step

Closes #6297

require "rubygems" is obsolete in Ruby 1.9.3

`number_with_delimiter': undefined method 
`safe_join' for 
#<ActiveSupport::Testing::Performance::Metrics::Objects

fixme: use minitest skip instead of return nil

closes #5970

Use the more idiomatic tap method

Improve and cleanup a bit partial renderer