[0172] Fixed MinLevel and XP reward for several quests
* Corrected to high XP for Quests 5901 & 5902 (A Plague Upon Thee, part 1 & 2) and min level for quest 5902. First quest in chain has MinLevel 48, so following quest should have also
  Source: http://www.wowwiki.com/Quest:A_Plague_Upon_Thee_(Horde)?oldid=825644
  Source: http://www.wowwiki.com/Quest:A_Plague_Upon_Thee_(Horde_2)?oldid=825896
* Corrected MinLevel for quest 398 Wanted Maggot Eye
  Source: http://www.wowwiki.com/Quest:Wanted:_Maggot_Eye?oldid=718115
* Corrected minLevel for quest 374 Proof of Demise
  Source: http://www.wowwiki.com/Quest:Proof_of_Demise?oldid=98522
* Corrected minLevel for quest 372 At War With The Scarlett Crusade
  Source: http://www.wowwiki.com/Quest:At_War_With_The_Scarlet_Crusade_(4)?oldid=528146
* Corrected minLevel for quest 371 At War With The Scarlett Crusade
  Source: http://www.wowwiki.com/Quest:At_War_With_The_Scarlet_Crusade_(3)?oldid=98527
* Corrected minLevel for quest 370 At War With The Scarlett Crusade
  Source: http://www.wowwiki.com/Quest:At_War_With_The_Scarlet_Crusade_(2)?oldid=98526
* Corrected minLevel for quest 361 A Letter Undelivered
  Source: http://www.wowhead.com/quest=361

Signed-off-by: cala <calaftp@free.fr>