let the sqlite task run without rails
Fix spacing issue
4.0 Release notes should point to 4.0 Changelog
Be assertive about adding `[ci skip]` message
`attibutes` => `attributes`
`implemention` => `implementation`
Pull the RelationMutationTests from cases/relation_test to cases/relation/mutation_test.
Deprecate the delegation of Array bang methods in ActiveRecord::Delegation

The primary means of returning results for Array bang methods is to modify
the array in-place. When you call these methods on a relation, that
array is created, modified, and then thrown away. Only the secondary
return value is exposed to the caller.

Removing this delegation is a straight-forward way to reduce user error
by forcing callers to first explicitly call #to_a in order to expose
the array to be acted on by the bang method.
Example of Join models

In the example of join models, there are five models but in the explanation only consider Category, Post, Comment and Guest.
Client.exists?(1,2,3) and Client.exists?([1,2,3]) does not work

The right command for doing that is Client.exists?id:[1,2,3]
Exists does not work like find method, in find method you can do Person.find(1, 2, 6) or Person.find([7, 17]) but not Person.exists?(1,2,3) or Person.exists?([1,2,3])
Review the changes made on 90155b4e28a3887dce9428e9df150ede3d6c7465
added # or comment
Cleanup of excerpt helper

* replaced String concatenation by joining
* separator has default value to '', even it is nil
Use MiniTest::Unit::TestCase instead of Minitest::Test

Since Rails 4.0.x is depending on Minitest 4.x, the constant won't be
available so the gist won't run.

[ci skip]
do not break params filtering on nil values

closes #12149
Allow Relation#from to accept other relations with bind values.
Blacklist refferenced in docs is actually whitelist
The docs refference a blacklist, but really what's being described
is a whitelist. Anything that matches the constraint gets through to
the path.
Change documentation to consistently refer to the same object
The documentation in this section is referring to a profile,
so the resource that's created should probably also be a
profile of some sort.
form_for - fix :namespace and :as options clash

:as option should not overwrite :namespace option when
generating html id attribute of the form element. id should be prefixed
by specified namespace even if :as option is present

Add test case showing the issue and code fixing it
[ci skip] Change link name of Rails i18n wiki.

Actually it's Ruby i18n link.