Rails app template: setup different mass assignment sanitizer for envs

Fix test warnings

For production - leave the default
For test and dev: :strict.

collection_singular_ids ignores association :include option

rake db:test:purge creates mysql database with wrong charset & collation (master branch)

Don't construct association scope in initializer. This yields a big performance gain for cases where the association is never used to load the target, for example with preloading. Related: #1873.

See new method mysql_creation_options. It is used by both
create_database and recreate_database so they are consistent.

(Cherry pick of 3ba3125b)

This is because only template rendering works with streaming.
Setting it at the class level was also changing the behavior
of JSON and XML responses, closes #1337.

Remove case statement changes from 2e0840dd and 56ac32ad. Inheritance FTW.

when condtions references tables from includes.
Test fail because of invalid sql:
ActiveRecord::StatementInvalid: SQLite3::SQLException: no such column: comments.id:
SELECT "posts".id FROM "posts" INNER JOIN "readers" ON "posts"."id" = "readers"."post_id"
WHERE "readers"."person_id" = 1 AND (comments.id is null)

Bug described in github#925

This commit will revert fix from https://github.com/rails/rails/commit/3436fdfc12d58925e3d981e0afa61084ea34736c , but tests is ok.

Bug described in #6569 ticket.

Addresses an inconsistency in the ActiveRecord::Base.method_missing handl

Fix timezone handling in String.to_time

Fix failing test because of Timezone difference.

Accept application.js/.css to exist in a deeper directory depth by default

Fixed AR::Relation#sum compatibility with Array#sum

Fixed CollectionAssociation#find to be compatible with Array#find

In order make Relation behavior closer to Array
Made Relation#sum to accept block and delegate it to Array#sum

Fix engine rake task

In order to make CollectionAssociation behave closer to Array
Add the ability to pass block to #find method just like Array#find does.

Only call set_owner_attributes for has_one association if target exists. [3.1.0rc4]

RubyGems requires at least one require_path.

This reverts commit e7fc5d1c.

Add w3c_validators gem to the doc group to fix failing validation of guides

Add railties to the load path if it's not already there

Reversing the changes related to CommandRecorder