increase ilvl requirements for expert dungeons

[KaivaC]

snip

I've had this argument many times before it had to be pointed out to me, but the casual base is much larger than the raid base. A lot of folks simply aren't interested in anything but MSQ. Others only go through it so they can craft, and others have zero interest in normal mode raids or the mindless grind that is eureka. Personally, I don't like that Ex dungeons are casual. But I understand the reasoning behind it. So if the alternative with EX dungeons is to raise the already forgiving min ilvl, I'd rather them just stay as casual as they are.