SD2 update
use WorldLocation in some more points. also add virtual definition to Map parents (FFU).
allow stacking PERIODIC_DUMMY for different casters (invented by 12396 from Schmoozerd)
[12395] Fix some summon spells which have only coordinate targeting

Note: These whole exceptions to enforce a unit-target for spells that simply should not have a unit target is a huge hack anyways, caused by the deficiencies of mangos (old) spell system