Bug 441254: manage the association between ClassRealms and Injectors; remove the injector when the realm is disposed
Bug 441254: add/remove realm listener in container class
Bug 441254: test disposed realms are forgotten

Change-Id: Ie9301fd43fbb664ef5dcc56df22d0761a7057693
Signed-off-by: Igor Fedorenko <igor@ifedorenko.com>
Source->Cleanup