-> All Credit to Kisuka for this big work.
Added news commands to alter questinfo conditions :
- setquestinfo_level : Add level range criteria for quest info with quest id 'quest_id'.
- setquestinfo_req : Add quest requirement for quest info with quest id 'quest_id'.
-> Player have / doesn't have the required quest.
- setquestinfo_job : To add additionnal job criteria.
-> Credit to Cydh !