Merge pull request #11109 from wangjohn/moving_pluck_and_ids_to_new_delegate_line

Moving the `pluck` and `ids` methods to their own delegate line.
Minor changes to actionpack/actionview Rakefile
remove trailing whitespace from `config/routes.rb` template.
Merge pull request #11112 from arunagw/rakefile_changes

Minor changes to actionpack/actionview Rakefile
Adding documentation to the Rails initialization guide. [ci skip]
Remove a comment related to 920753f

Since 920753f, double assignment isn't used anymore
Merge branch 'master' of github.com:lifo/docrails

Conflicts:
	guides/source/layout.html.erb
fix activerecord/examples/performance.rb#L101 syntax error
Merge pull request #11126 from tumayun/fix_activerecord_examples_performance_rb_syntax_error

fix activerecord/examples/performance.rb#L101 syntax error
mention the removal of `--builder` in 4.0 release notes.
Add DelegationError class. Rasied by delegation to a nil object
linking small rails 4 features image to a bigger one [ci skip]

View a bigger version onclick
https://github.com/rails/rails/issues/11100
Merge pull request #10828 from southpolesteve/delegation_error_class

Create DelegationError class
Merge pull request #11128 from edg3r/patch-1

linking small rails 4 features image to a bigger one
Merge pull request #11124 from wangjohn/removing_deprecated_rake_tasks

Removing deprecated rake tasks for tests
Move delegation error constant to inside Module
Review railties changelog [ci skip]
Removing deprecation message and silencing method.

The deprecation rake task is no longer useful because the deprecated
methods have already been removed.

The method for silencing stderr has been removed since it was only
useful for `rake test:uncommitted` which was deprecated and removed.
Improved grammar and replaced 'dbs' slang with 'databases'
Use activerecord 4.0.0 for reporting bugs using the template[ci skip]