* apply regex to change public copy constructors to protected
* cleanup code using now protected constructors
* fix manaBuilder weird casting of Mana into ConditionalMana
* replaced blocking/blocked by predicates
* added test for knight of dusk (currently fails)
* added source parameter to filters and everything else that needs it
* some changes to various predicates
* test fix
* small changes to filter code
* merge fix
* fixed a test failure
* small change to Karn, Scion of Urza
* removed sourceId from filter methods and other similar places
* added new getobject method to fix some test failures
* a few more fixes
* fixed merge conflicts
* merge fix
* [KHM] fixed that some effects can't find mdf commanders on battlefield (example: Fierce Guardianship, #7504);
* Oathbreaker: fixed that some cards that refer to commander can affects signature spells too;
