Server/PacketIO: Temporary fix for NPC gossip.

Updated SMSG_NPC_TEXT_UPDATE structure.

Added Broadcast text handler for SMSG_DB_REPLY.
Some FORM_ updates
Update SpellAuraEffects.cpp
Server/PacketIO: Small typo in SMSG_GOSSIP_MESSAGE structure.
Server/PacketIO: Another typo in SMSG_GOSSIP_MESSAGE structure.
Server/PacketIO: Updated CMSG_GOSSIP_SELECT_OPTION structure.
Server/PacketIO: Enabled SMSG_GOSSIP_POI opcode.
Server/PacketIO: Updated CMSG_CANCEL_CAST structure.
Merge pull request #19 from ProjectSkyfire/master

 	Some FORM_ updates