[12594] Fix LANG_ADDON use on Guild Channels and avoid a possible crash.

Part of @rsa work too.
[12595] Imrpove readability of the code and avoid visual studio warning c4996 I don't think this can cause trouble with gcc but let me know if its the case.
[12596] Avoid last Visual Studio warning.
[12597] Fix aura not removed in some case. ProcFlag test seem not enough in some case.

Fix #307
[12598] Avoid a possible crash using console
[12599] Improve npc chat command.
Now npc say hello $N will work as well as textemote and yell.
Also remove an uneeded test, Thank to Schmoozerd.
[12600] Cleanup world state sending

As we understand most of the world states now there really is no need to send dummy states if the zones/battlegrounds are not implemented/enabled

See https://github.com/cmangos/issues/wiki/World-States for a list of known world states
[12601] Correct some BG chat message missing target name. Thank to @CamilleMoon for pointing. Fix cmangos/issues#391
[12602] Set max gossip menu items to 32

Client does not show more than that.

Signed-off-by: stfx <stfx@hotmail.de>
[12603] Implement dummy effect for spell 41283
[12604] Correct feeding hunter pet. Main problem was caused by commit d02e72ac9293724cf5595aaed335d3abedef0831
[12605] Fix debug parameters added in [12592]

Thanks to @ottowayne for pointing out
[12606] Big rename of creature_template fields. Also renamed core part to have same field name than sql.

Added new fields will be used in near near future for new stats system.

Please refer to http://cmangos.net/thread-431.html for more informations.

Thank to all involved on this.
[12607] Spell updates required for Northrend quests

Limit targets and set positive effect for spell 45863 - quest 11889
Implement script effect for spells 44323 and 44407 - quests 11465 and 11468

Close scriptdev2/scriptdev2#95
[12608] Rmove trailing code and correct frenchglish introduced in [12604]  630caa99b9723ff8886c46f4c6e3d732d1d748fc

Thank to @Schmoozerd for pointing.
[12609] Update all stats after creature respawn. That fix the stats were not correct when creature could have more than one level.
[12610] Remove unused argument in CalculateMeleeDamage
[12611] Hide known recipes when the Usable box is checked in the AH.

Fixes cmangos/issues#394.
[12612] This is used to prevent creatures from pulling too many nearby monsters, for example during certain scripted events.

A good example is Mr. Smite in the Deadmines. There are two guards at the
bottom of his bridge which trigger aggro for him, but if he is missing
this flag he will also pull nearby mobs on the ship, which is not expected
behavior.
[12613] Add ACTION_T_SET_STAND_STATE for EventAI

This will allow changing the stand state of the current creature

Fix scriptdev2/scriptdev2#74