Optimize <association>_ids for hm:t with belongs_to source

Use as_json instead of rails_to_json

ActionPack components should no longer have undeclared dependencies.

JSON: split encoding and coercion

Don't rely on Rails.logger

Add notes to TZInfo bundling task

Kathmandu TimeZone: reference Asia/Kathmandu zone directly instead of through linked timezone

Load correct version of TZInfo

String #to_time and #to_datetime: handle fractional seconds [#864 state:resolved]

Update bundled TZInfo to v0.3.13

Work around a gem dependency edge case that prevents Rails from booting..

Pull in time extensions also

Prefer sibling action_controller

YAGNI Method references. Deprecated

Add explicit requirement in a few cases it was missing.

Further cleaning up new callbacks

Simplify callbacks to use less metaprogramming

Get all the callback tests to work on new base

Fix initializer i18n path test

Ensure ERB source begins with the encoding comment

Revert "Modify the Rails::Application::Path object to allow for more concise path definition."

Add content_for?(:name) helper to check if content_for(:name) is present [#1311 state:resolved]

Add expiry support File cache store [#1693 state:resolved] [Roman Shterenzon, Pratik Naik]