EntityFindSomething: Always load the real entity stdClass, if e.g. we are dealing with a page manager ctools_context object, to fix https://drupal.org/node/2151035.
second argument in entity_load must be an array.
Introduce crumbs_Util::itemExtractEntity() and use it to avoid problems with replaced entity wildcard loaders.
end() is by reference.
reset() seems more logical than end().