[0868] Fixed various startup errors

* Removed lingering creature addon after creature deletion
- Blazing Invaders
- Watery Invaders
- Whirling Invader
- Jezelle's Summons
* Fixed quest flags for quests 7481, 7482 (Elven Legends)
* Fixed NPCFlags for NPC 9087 Bashana Runetotem
* Removed lingering creature path after creature deletion
* Fixed movementtype of three NPCs (now handled by linking)
* Added wrongly removed waypoints of creature 2619 (Hammerfall Grunt)
* Removed old unused DBScripts for creature 8256 (Curator Thorius)
* Fixed addon for creature 10558 (Hearthsinger Forresten) and moved it
to template
* Fixed movementtype of creature 6090 (Bartleby) since its WP were
removed