Hi, first great mod by the looks of it, looking it over makes me want to play Civ4 again after a few years break, thank you for that. 
I am eager to start a game, but i cant decide if I should use the 3.1 release version or the SVN version and being new to RI I find the new content so overwhelming that I am unable to spot the decisive differences myself yet.
So,
would it be possible to get some cliffnotes as to what (major/interesting) changes are incorporated in the SVN compared to the 3.1 version?

I am eager to start a game, but i cant decide if I should use the 3.1 release version or the SVN version and being new to RI I find the new content so overwhelming that I am unable to spot the decisive differences myself yet.

So,
would it be possible to get some cliffnotes as to what (major/interesting) changes are incorporated in the SVN compared to the 3.1 version?