Add support for edited messages (gitter)

matterbridge.toml.sample

@@ -282,6 +282,15 @@ ShowJoinPart=false
 #REQUIRED
 Token="Yourtokenhere"
 
+#Disable sending of edits to other bridges
+#WARNING: the default uses FAYE which is experimental. If you need stability set EditDisable=true
+#OPTIONAL (default false)
+EditDisable=true
+
+#Message to be appended to every edited message
+#OPTIONAL (default empty)
+EditSuffix=" (edited)"
+
 #Nicks you want to ignore. 
 #Messages from those users will not be sent to other bridges.
 #OPTIONAL