[3044] Fix Golemagg aura

Thanks @Tobschinski
[3045] Allow M'uru to be summoned after SWP doors removal

Thanks to @Ulduar
[3046] Update M'uru script

* Implement Darkness and Singularity
* Fix encounter reset after [3045]
* Allow DB to handle summons cleanup on reset
[3047] Fix faction of escortee Corporal Keeshan

Close #115

Signed-off-by: Xfurry <xfurry@scriptdev2.com>