Require missing libraries and check for defined ActionController constant so ActionView can be used standalone

Removed template_public? because it will always be true since the default template is never a partial

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

All *_polymorphic_url, *_polymorphic_path helpers can now accept
an options hash which will be passed on to the named route
making it possible to generate polymorphic routes with additional
url parameters.
Signed-off-by: NPratik Naik <pratiknaik@gmail.com>

Return nil instead of a space when passing an empty collection or nil to 'render :partial' [#791 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Consistently use the framework's configured logger and avoid reverting to RAILS_DEFAULT_LOGGER unless necessary.

Set cache control to require revalidation if cache freshness response headers are set. Don't set Content-Length header if 304 status.

Signed-off-by: NPratik Naik <pratiknaik@gmail.com>

Signed-off-by: NMichael Koziarski <michael@koziarski.com>

Ensure public superclass methods don't shadow public controller methods. Case in point, ruby-debug's Kernel#start shadowing a controller's start action.

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Prototype helpers should generate Element.insert instead of Insertion.new, which has been deprecated in Prototype 1.6.

Added back ActionController::Base.allow_concurrency flag and moved lock down to controller processing.

Prepare Route#generate and Route#recognize early. Also refactor segments a bit to try to make immutable.

AbstractRequest.relative_url_root is no longer automatically configured by a HTTP header. It can now be set in your configuration environment with config.action_controller.relative_url_root