Rename MessageEvent::GetMessageEvent() to GetMessageText

[Paul Bienkowski]

... and fix all occurrences.

[Vincenzo Comito]

Timer and ChatMessageEvent also have GetMessageEvent() method, should it be renamed, too?

[Paul Bienkowski]

Well, I noticed it does not inherit from ChatMessageEvent, even though it should... Could you do that as well? Make sure to call MessageEvent's constructor in the initializer list of ChatMessageEvent, then.

[Vincenzo Comito]

I was adding to ChatMessageEvent the inheritance from MessageEvent, but it causes a diamond. Virtual inheritance seems to work fine, should I add it?

[Paul Bienkowski]

I see that diamond... If it works, it is fine! Go ahead.

[Sven-Hendrik Haase]

Done.