* Created new class FSConsoleUtils to handle console-related tasks
* Moved IM in console handling from IMHandler to FSConsoleUtils
* IMHandler is now stock V3 and will produce no problems anymore once it goes away with CHUI
* Nearby chat handling moved from LLNearbyChatHandler to FSConsoleUtils
* LLNearbyChatHandler::processChat() is now mostly stock V3 to reduce problems with CHUI
* (Group-)IMs in chat console settings are now independent from their corresponding toasts counterparts and can be set independently