Renamed generated_feature_methods to generated_association_methods.
Updated 3.2.x link [ci skip]
Update I18n guide to note the additional features of the `translate` view helper
Update 3_2_release_notes.md

Code style adherence
Fixes typo
Update 4_0_release_notes.md

Code Highlighted
Update workaround for "Outside the Scope of Strong Parameters" 

The previous example of how to permit a hash of unknown keys used .tap, but had the side effect of logging an "Unpermitted parameters" message despite being a successful workaround. The proposed workaround is ever so slightly better, imo, because it won't result in an "Unpermitted parameters" message being logged.
warning about saving models with dirty attributes

See #8328
Fix undefined method error for NilClass

Add .try to prevent undefined method error for NilClass.
Fixed URL link to rendered_component plugin [ci skip]
rephrase the overriding views part about the view path

See rails/rails#12608
fix typo introduced when searching in markdown document with vim
guides/rails_on_rack: Fix formatting of _Internal Middleware Stack_ section
Hstore and JSON fields are not supported with store

The use of `store` on Hstore fields (for instance) is not needed
because serialization aimed to interact with Ruby objects and not
with provided field types
exists? is deprecated in ruby trunk [ci skip]

see here 4d4ff531b8807ee88a3fc46875c7e76f613956fb
Add test for ActiveRecord::Relation YAML serialization, for #5303 issue
Ensure backwards compability after the #deep_munge extraction
Code style for privacy indention
Aesthetics
Line up the comments for aesthetics