Goonchat Twemoji support.

Add twemoji support to goonchat. It only parses annotations if the message has a
<span> tag with the 'emoji_enabled' class.

Also adds utf-8 support with goonchat, for the twemoji.

code/modules/admin/verbs/adminpm.dm

@@ -149,8 +149,11 @@
 						adminhelp(reply)													//sender has left, adminhelp instead
 				return
 
+	// for emoji, we have to define a specific span for jquery to look for
+	msg = "<span class='emoji_enabled'>[msg]</span>"
+
 	recieve_message = "<span class='[recieve_span]'>[type] from-<b>[recieve_pm_type][key_name(src, C, C.holder ? 1 : 0, type)]</b>: [msg]</span>"
-	to_chat(C, recieve_message)
+	to_chat(C, recieve_message) //we also have to pass the allowEmoji flag
 	to_chat(src, "<font color='blue'>[send_pm_type][type] to-<b>[key_name(C, src, holder ? 1 : 0, type)]</b>: [msg]</font>")
 
 	/*if(holder && !C.holder)