This reverts commit 6acebb38.

Usage of this feature did not reveal any improvement in existing apps.

Conflicts:

	actionpack/lib/action_dispatch/routing/mapper.rb
	guides/source/routing.textile
	railties/lib/rails/engine.rb
	railties/lib/rails/paths.rb
	railties/test/paths_test.rb

From the Pull Request #6461

This is fairly common in Rails applications and is requested a lot of the time on Stack Overflow and #rubyonrails

This reverts commit feaa7b35.

Reason: Incorrect change. That's a Rails 4 feature and will not
obviously work in 3.2.3.

[ci skip]

This syntax does not seem to work. Throws the error
  "can't convert String into Hash (TypeError)"

Tested on:
* Ruby 1.9.3
* Rails 3.2.3

This feature enables the ability to load an
external routes file from the router via:
  draw :filename

External routes files go in +config/routes+. This
feature works in both engines and applications.

In the current router DSL, using the +match+ DSL
method will match all verbs for the path to the
specified endpoint.

In the vast majority of cases, people are
currently using +match+ when they actually mean
+get+. This introduces security implications.

This commit disallows calling +match+ without
an HTTP verb constraint by default. To explicitly
match all verbs, this commit also adds a
:via => :all option to +match+.

Closes #5964

path segment

This was implemented in 2ee4dd85

There was a mix, sometimes patch first, sometimes put first.
Use always patch first, since this is going to be the
primary verb for updates.

uses PATCH for the forms of persisted records, and routes PATCH and PUT to the update action of resources

PATCH is the correct HTML verb to map to the #update action. The
semantics for PATCH allows for partial updates, whereas PUT requires a
complete replacement.

Changes:
* adds config.default_method_for_update you can set to :patch
* optionally use PATCH instead of PUT in resource routes and forms
* adds the #patch verb to routes to detect PATCH requests
* adds #patch? to Request
* changes documentation and comments to indicate support for PATCH

This change maintains complete backwards compatibility by keeping :put
as the default for config.default_method_for_update.

I had to try out myself to realize that it's 301, so this should be helpful to everyone.

Previously it was:

    {:controller=>"photos", :action=>"show", :id=>/[A-Z]\d{5}/}

Now it becomes:

    photos#show {:id=>/[A-Z]\d{5}/}

This reverts commit 0894d73c.

Reason: CHANGELOGs should not be changed in docrails.

Should be "match" instead of "map".