[Official Testing] Updated EDU with all the "unofficial" fixes and many others

[QuintusSertorius]

Now people have had some time to play with these changes, what's the view of light cavalry speeds?

They were definitely much too fast in the first couple of versions, but I think they're about right now. They should be notably faster than heavies, but not so fast they're like lightning around the battlefield. They should be able to outpace heavier cavalry, but not look like it's easy.