====== sendChatMessage() ======
wrtc.sendChatMessage() sends a text message. Supplied arguments are the address to send the message to and the text message.

===== Arguments =====
wrtc.sendChatMessage(to, msg)
  * to - string containing address to send message to. Multiple addresses can be specified, separated by comma.
  * msg - string containing the message to send, or 0 to indicate "iscomposing"

===== Returns =====
Nothing.

===== Events =====
No events are raised by wrtc.sendChatMessage().

The client at the other end, receiving the text message will however get a [[ixnx:wrtc:js:api:wrtc:onchatmessage|wrtc.onChatMessage()]] event.

===== Composing =====
By replacing text message with a 0 an "iscomposing" message is sent, to alert other end you are typing your response.

wrtc.sendChatMessage("adam@foo.com", 0) sends an iscomposing message to adam@foo.com

===== Example =====
  wrtc.sendChatMessage("adam@foo.com", "Hello!")
sends text message "Hello!" to adam@foo.com

===== Tips & Tricks =====
  wrtc.getCalls("inGroupCall").forEach(function(call) {wrtc.sendChatMessage(call.getPartner(), "Hello!")})
send text message "Hello!" to everyone in current group call

===== See Also =====
[[ixnx:wrtc:js:api:wrtc:onchatmessage|wrtc.onChatMessage()]]