DB/Vashj'ir: Vashj'ir spawns, creatures addons & models updates.

* Enjoy!
DB/Misc: Added few missing spawns in Azshara.
Sync with TrinityCore/1b8d917ea9
DB/Triggers: Added two missing trigger teleport in Hyjal.
DB/Triggers: Added & Updated few areatriggers teleportation.
DVCS:

* Moved all the old TDB versions to /old/ subdirectory
* The current directory for the TDB updates is /updates/.
* Made a bat file to allow devs to easily create a TDB repository update.

Note: This WILL break auto_merge.sh for TDBs installed right before this commit, taken it changes the repository directory structure.
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore_4.3.4_DB_Alpha
DB/POIs: Added some quest poi points.
DB/POIs: Added / Updated few points of interest.
DB/Gossip: Fixed Theramore Guards' gossips & added their points of interest.
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore_4.3.4_DB_Alpha
Nothing important.
Merge branch 'master' of https://github.com/Exodius/Trinity4