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This reverts commit 7feec40b.

Reason: The guide had the contents of railties/bin/rails and I don't see
any reason to change it.

removed unused variables

Previously `rendered_format` was set only based on mime types
passed in Accept header, which was wrong if first type from
Accept was different than rendered partial. The fix is to simply
move setting rendered_format to the place where template
is available and grab format from the template. If it fails
we can fallback to formats passed by Accept header.

prevent returning a negative zero from number_with_precision

Remove "needless boolean casting"

When someone accidentally passes a string to sanitize like:

sanitize("<span>foo</span>", :tags => "b")

there is no indication that it's the wrong way and span
will not be removed.

Issue with schema dump

Cookie store session hash

Commit: 7a0cf2f5

remove unused require from AS/core_ext/class/delegating_att.rb 

String#titleize works properly with smart quotes

Properly deprecate the block argument in AV FormBuilder

It is in response for confusion in issue #5301

(and changed the use of true for a more database agnostic example).

apply form_for namespace option to date_select

closes #2737

Conflicts:

	activerecord/lib/active_record/coders/yaml_column.rb

sprockets-rails 1.0.0 was released, remove git dependency from Gemfile

ActiveModel::Name does not inherit from string