[0539] Quest 8552 had wrong 'repeatable' flag

* "The Monogrammed Sash" quest had wrong 'repeatable' flag
Thanks
Neotmiren for pointing and fixing. This closes #452
[0540] Pattern: Runic Leather Headband was added to vendor 12941 (EPL)

* Pattern: Runic Leather Headband was added to vendor Jase Farlane
(EPL)
Thanks Neotmiren for pointing and fixing. This closes #453

Source: http://www.wowwiki.com/Leatherworking?oldid=338750
[0541] Fixed faction of creatures 2597 & 2599

* Lord Falconcrest and Otto (Stromgarde) had wrong 'Monster'
faction
Thanks Neotmiren for pointing and fixing. This closes #454
Source: YTDB
[0542] Fixed drop chance of item 12808

* Scourge Warder had too high drop chance for Essence of Undeath
Thanks
Neotmiren for pointing. This closes #456
Source:
http://wowhead.com/item=12808#dropped-by
[0543] Removed item 5076 from creatyre 68 loot table

* Stormwind City Guard drops quest item called 'Shipment of Boots'

Thanks Neotmiren for poiting and fixing. This closes #455
Merge pull request #458 from ProjectDreamstate/classic

[0544] Various adjustments and additions to creatures in Elwynn Forest
[0544] Applied formating to previous Pull Request
[0545] Ruins of Ahn'Qiraj - Silicate Feeder
* Removed spwawn Hive'Zara Larva
* added 40 spawns Silicate Feeder
* updated template - should be neutral

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