Rails One Click is not maintained anymore [ci skip]

Let's tell people that they should rely on Tokaido instead of Rails One
Click.

Fixes #14960.
Merge pull request #14946 from jcoleman/fix-null-binary-column-logging-exception

Fix exception when logging SQL w/ nil binary value.

Conflicts:
	activerecord/CHANGELOG.md

Conflicts:
	activerecord/CHANGELOG.md
Merge pull request #14949 from bogdan/empty-hash-array-parameterization

[Fixes #14948] Hash#to_query: right serialization for  empty hash and array
Conflicts:
	activesupport/CHANGELOG.md
Only accept actions without File::SEPARATOR in the name.

This will avoid directory traversal in implicit render.

Fixes: CVE-2014-0130
Merge pull request #14978 from bogdan/relation-join

[Regression 4.0 -> 4.1] Put back Relation#join method as a delegate to Array
Preparing for 4.1.1 release
Merge branch '4-1-sec' into 4-1-stable

Conflicts:
	actionmailer/CHANGELOG.md
	actionpack/CHANGELOG.md
	actionview/CHANGELOG.md
	activemodel/CHANGELOG.md
	activerecord/CHANGELOG.md
	activesupport/CHANGELOG.md
	guides/CHANGELOG.md
	railties/CHANGELOG.md