Maybe MultiUserChatManager.insertService should be public or add an new API?

Maybe MultiUserChatManager.insertService should be public or add an new api works like it.

In class org.jivesoftware.openfire.muc.MultiUserChatManager,

now there is an api registerMultiUserChatService

"

This is typically used if you have a custom MUC implementation that you

 want to register with the manager.

"

, but now there is no api to add serviceID for custom MUC, so getMultiUserChatServiceID ALWAYS return null, so some apis such as removeMultiUserChatService, updateMultiUserChatService and etcs crashes.

What’s more, some changes should be applied to loadServices() and new API for skiping loading custom MUC implementation