[2813] Add exception for quests 20439 and 24451 for Dalaran guards
[sd2_mr0576] Fix possible random true/false
[2819] Fix issue for quest 1249
[2820] Use the new ScriptEffect call in SD2. Requires CMangos [12409]
[2821] Implement script for spell 21050

This will fix quest 6661

Thanks tarwyn and Nett118 for the info

Close #22
fix compile