new methods ideas.
more api idea.
provice $app to get request (not from $request object).
Template frame to accept $app as first argument in constructor.
and use it to get the responder.
Session frame to accept $app as first argument in constructor.
Session frame to accept $app as first argument in constructor.
implemented match method in Stackable.
implemented before filters.
add return and argument types.
remove ApplyFilterTrait (before filter is in Stackable) and other untested classes.
renamed Stackable to Stack class.
match and before shall return $this.
renamed StackableInterface to StackInterface (as class name changed...)
created Service namespace to store classes for services.
App::start method to set up config as locator.
move Locator under Service namespace.
use $request->attribute as bag; remove Bags from App class and tests.
removed unnecessary dependency on App class.
remove Bag class, no longer used in the Pile.
source code format.