[z2433] Fix Chat system after chat refactoring backport

Thanks to all involved.
[z2434] Restore characters bubbles and remove unused parameters in BuildChatPacket.

Thanks to Wort for pointing in irc. (go to
http://cmangos.net/thread-26.html if you want don't know how to join us :)
)
[z2435] Revert "[z2434] Restore characters bubbles and remove unused parameters in BuildChatPacket."

This reverts commit 0828a247dc87377179a70b268dd7de4f69caae79.
[z2436] Fix bubbles on char by correctly send senderGuid and targuetGuid
when required.

Thank you this seem resolve last chat issues.