Bug 955528 - JS-Yahoo: Add /conference command to create Yahoo conferences. r=clokep

chat/locales/en-US/yahoo.properties

@@ -25,7 +25,13 @@ options.ignoreInvites=Ignore conference invitations
 system.message.conferenceLogoff=%S has left the conference.
 system.message.conferenceLogon=%S has joined the conference.
 
-command.help.invite=/invite <user1>[,<user2>,...] [<invite message>]: invite one or more users into this conference chat.
+# LOCALZIATION NOTE (command.*):
+#   These are the help messages for each command, the %S is the command name
+#   Each command first gives the parameter it accepts and then a description of
+#   the command.
+command.help.invite=%S <user1>[,<user2>,...] [<invite message>]: invite one or more users into this conference chat.
+command.help.conference=%S: Create a new conference room in which you can later invite other users.
+
 # LOCALIZATION NOTE (command.feedback.invite):
 #   %S is the user, or comma separated list of users, invited to the conference.
 command.feedback.invite=You have invited %S to the conference.

chat/protocols/yahoo/yahoo.js

@@ -541,8 +541,8 @@ YahooProtocol.prototype = {
   commands: [
     {
       name: "invite",
-      get helpString() _("command.help.invite"),
-      usageContext: Ci.imICommand.CMD_CONTEXT_CHAT,
+      get helpString() _("command.help.invite", "invite"),
+      usageContext: Ci.imICommand.CMD_CONTEXT_ALL,
       run: function(aMsg, aConv) {
         if (aMsg.trim().length == 0)
           return false;
@@ -569,6 +569,16 @@ YahooProtocol.prototype = {
                           {system: true, noLog: true});
         conf._account.LOG("Sending conference invite to " + invitees);
         return true;
+      },
+    },
+
+    {
+      name: "conference",
+      get helpString() _("command.help.conference", "conference"),
+      usageContext: Ci.imICommand.CMD_CONTEXT_CHAT,
+      run: function(aMsg, aConv) {
+        aConv.account.joinChat(null);
+        return true;
       }
     }
   ],