Sends a whisper over Battle.Net
See also Battle.net functions.
Signature:
BNSendWhisper(presenceID, messageText)
Arguments:
presenceID-presenceIDof the destination. (number)messageText- The message text to send. This can contain any UTF-8 character exceptNUL,CR, andLF, and is limited to 255 characters in length. If the length exceeds 255, the function will silently fail. (text)