Merge pull request #22 from armm77/master

Menu cleaning and updating.
Fixed logistical errors in dynamic collision.
Added configurable option in cmake for multi-core compiling support under visual studio.
Merge branch 'master' of https://github.com/Sandshroud/Sandshroud
Add object models to all valid cells based on bound corners.
Spam cleanup.
Data appending.
Cleaning and update menus (Dalaran). Added 2 NPC corresponding menus.