requires active_support/inflector/methods active_support/core_ext/string/inflections in local_cache.rb because it uses underscore

requires active_support/core_ext/array/extract_options in mem_cache_store.rb because it uses extract_options!

[#3636 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

[#3641 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Rename Model.engine to active_relation_engine. Cache arel_table and the method takes no arguments now

Put MySQL and Postgres in an :only block so you can gem bundle --only default to leave out MySQL and Postgres

Make rendering in ActionView happen through _render_template, as the rendering which comes from ActionController.

ActionController::Logger should include AbstractController::Logger and sort autoloads for easier readability.

controller_path is required by ActionView, so move it up to AbstractController and refactor AbstractController::Layouts.

	* Rename <framework>/rails.rb -> <framework>/railtie.rb
	* Rails::Plugin -> Rails::Railtie
	* Rails::Plugin::Vendored -> Rails::Plugin